The candidates preparing for government exams like Banking, SSC, IAS, Railways need to be completely focused on their preparation strategy, as competition is getting tougher day by day. But in order to crack government exams, you need to prepare yourself extremely well.
500 Important Biology Questions: SSC, Railways & State Exam
Here we are providing you a few questions based on biology which will help in enhancing your grasp for the upcoming SSC, Railways and State Exam. Exam 2019.
1) Which protein is found in nails?
Keratin
2) Where is Stapes bone found in human body?
Ears
3) Endoplasmic Reticulum are rough because of _______ present on their surface.
Ribosomes
4) Where is urine stored in human body?
Urinary bladder
5) Early blight is a common disease seen in
Potato
6) The function of nervous tissues is to conduct messages:
throughout the body
7) Human insulin is being commercially produced from a transgenic species of:
Escherichia
8) Which hormone is secreted by the pituitary to start the ovulation process?
Luteinising hormone
9) Involuntary actions including blood pressure, salivation and vomiting are controlled by the_____
Medulla
10) Ascaris, a kind of worm, lives in which part of the human body?
Small intestine
11) Human hypothalamus gland _______.
is present in the brain.
12) Ornithology is the study of _____.
Birds
13) Which is the reproductive organ of Angiosperms?
Flower
14) Elephants, Bears, and Rhinos are examples of
Mammals
15) To determine the health of a water body, what is measured?
Dissolved Oxygen
16) What does a plant do with the sugar it makes ?
Converts it into starch
17) Is virus a living being ?
No, because it does not possess the machinery to duplicate itself
18) Air enters the lungs due to movement of
Rib muscles and diaphragm
19) Fish has a streamlined body to
counter the resistance of water
20) The flowering plants belong to the group
Angiosperms
21) The plant organelles which can trip sunlight are
Chloroplasts only
22) The topmost skin layer that is exposed in a human body, is called __________.
Epidermis
23) What is the approximate Value of pH of Human Blood?
7.4
24) The process of converting wet waste to manure is called:
Composting
25) Which pollutant in water causes “Minamata’ disease?
Methyl Mercury
26) Plasma, Which is one of the blood’s constituent, is a __________
Liquid
27) ______, also known as ethanoic acid, is an organic chemical compound best recognized for giving vinegar its sour taste and pungent smell.
Acetic Acid
28) Cadaver refers to _____.
A dead human body used for anatomy
29) ___________cannot be corrected with spectacles.
Cataract
30) In a food chain, what is the difference between primary consumers and secondary consumers ?
Primary consumers eat only plant; secondary consumer eat primary consumers
31) Cholesterol is related to-
Fats
32) The blood groups in man were discovered by-
Landsteiner
33) Major requirement of protein in the body is for-
Growth
34) The hardest part of a tooth is the-
Enamel
35) Saliva has the enzyme .
Ptyalin
36) Haemoglobin is found-
In RBC
37) Night blindness is caused by lack of vitamin –
Vitamin A
38) The blotting technique used to identify the isolated protein is ________
Western blotting
39) ____ is a process by which metabolic waste is eliminated from an organism.
Excretion
40) The olfactory receptors in human beings detect ______.
Smell
41) Where does glucose breaks down into pyruvate?
Cytoplasm
42) Which forms a common passage for both the sperms and urine in human males?
Urethra
43) Plants utilise ________________ from the atmosphere for photosynthesis.
Carbon dioxide
44) The major component of thyroxin hormone is ____. Deficiency of ____ causes goitre.
Iodine
45) The cells of sclerenchyma tissue have their walls thickened due to which chemical substance?
Lignin
46) Which part of flower produces pollen grains that are generally yellowish in color?
Stamens
47) Many marine animals use _______________ dissolved in sea-water to make their shells.
Carbonates
48) Which tissue provides support to plants and also stores food?
Parenchyma
49) In sexual reproduction the male gametes are generally ______.
Both motile and small
50) The terminal part of the carpel in a flower, which may be sticky, is ______.
Stigma
51) Living things constitute the biotic component of the ___________________.
Biosphere
52) Water which is suitable for drinking is called _______________ water.
Potable
53) Which type of pathogen causes the water-borne disease Dysentery?
Bacterial
54) Capra Hircus is the scientific name of ________.
Goat
55) In fertilisation of a flower, the fertilised central cell will develop into __________ .
Endosperm
56) Cockroaches belongs to the phylum_____
Arthropoda
57) Which Vitamin is essential for the absorption of calcium?
Vitamin D
58) Build-up of which acid in our muscles during sudden activity causes cramps?
Lactic acid
59) Plants having body that is differentiated into roots, stems and leaves and have specialized tissue for the conduction of water and other substances, fall in which group?
Pteridophyta
60) Bacteria, blue-green algae or cyanobacteria and mycoplasma are examples of organisms of which kingdom?
Monera
61) Slow-growing large coloured patches on the bark of trees are the examples of symbiotic life forms called ______.
Lichens
62) Blood is a connective tissue embedded in which type of intercellular matrix?
Fluid
63) The wing of a bat and the wing of a bird are the examples of ______ limbs.
Analogous
64) How many versions of each trait will be there in each child as per the rules for the inheritance of traits?
Two
65) Organs having different structure and components but perform similar functions are called ______.
Analogous organs
66) Which is the longest part of alimentary canal?
Small intestine
67) Some amount of plasma, proteins and blood cells escape through the pores present in the walls of capillaries into the intercellular spaces in the tissue and form ______.
Lymph
68) Epidermal cells of which part of plant often secrete a waxy water resistant layer on their outer surface?
Aerial parts only
69) Which part of plant cell, is selectively permeable?
Cell membrane
70) The following nerves which are attached to the brain and emerge from the skull is__________?
Cranial Nerves
71) The primary consumer in an ecology chain is: __________.
Vegetarian
72) What is the most responsible factor for plant diseases?
Fungus
73) Which is the smallest flower in the world?
Wolffia
74) The edible part of an onion is _____________.
Fleshy leaves
75) The study of flowers is called ____________.
Anthology
76) An erythrocyte lives for approximately .
Four months
77) How does the pollination take place in maize?
Pollination by air
78) Study of fruits is called ____________.
Pomology
79) Where is the pituitary gland located?
Brain
80) What is a mushroom?
Fungus
81) The outer cover of plant cell is called ____________?
Cell wall
82) Which impart yellow colour to urine in humans?
Urochrome
83) In which process plants convert potential energy into kinetic energy?
Respiration
84) Which part of the body most likely get affected when microbes enter the body through nose?
Lungs
85) Number of RBC in an adult man per of blood is ______.
5000000
86) What type of interaction is necessary for the survival of both the partners in association?
Symbiosis
87) Which part of the plant helps in holding the plant firmly in the soil?
Roots
88) Plants with green and tender stems are called as _____.
Herbs
89) Which type of plants are usually short and may not have many branches?
Herbs
90) Oxygen is transported in blood mainly by _____.
Erythrocytes
91) Iron in haemoglobin exists as ______.
Ferrous ions only
92) Menopause is the stage in human female when ______.
Menstruation stops and reproductive capacity is arrested
93) In humans, exhaled air contains oxygen about .
16%
94) The correct sequence of taxonomic categories is .
Division-class-order-family-genus -species
95) Ileum is .
last part of the small intestine
96) Pancreatic juice requires which medium for their action?
Basic
97) By which process the Chinese Scientists have cloned two identical long. tailed macaques?
Somatic cell nuclear transfer
98) The onion and garlic odour is due to the presence of which chemical?
Presence of sulfur
99) ____ of herbivores is lengthier than that of carnivores.
Intestine
100) _____ consume cellulose based food and it takes longer time to absorb nutrients from cellulose.
Herbivores
101) Scientists of which country have developed working human skeletal muscle from stem cells in the laboratory for the first time?
United States of America
102) The rhythmic contraction of the lining of muscles of canal to push the food along the gut is called ______.
Peristalsis
103) Which type of pigment is found in fruits and vitamins that are also known as pre-vitamins?
Carotenoids
104) In which form the energy remain stored in the body that is used during emergency situations?
Starch
105) ______ is a plant disease characterized by curling of leaves and caused by a fungus, genus Taphrina, or virus, especially genus Begomovirus of the family Geminiviridae. It is most often observed in chili, tomatoes, papaya, peach and almond plant.
Leaf curl
106) ______ is the essential oil found in cloves?
Eugenol
107) _______constitute the upper part of aquatic ecosystem.
Planktons
108) Deformed bones are associated with which disease?
Rickets
109) Prostate in human body is a
Gland
110) ZIKA virus which damages the brain of the foetus is
Mosquito borne
111) When a person can see only nearby objects, the condition is called
Myopia
112) Camel and Claming are the only mammals that posses ____ RBCs.
Nucleated
113) Acini and islets of langerhans are found in which gland?
Pancreas
114) 280 days is the gestation period of which animal?
Cow
115) Oncology is associated with treatment of
Cancer
116) The O-T-C medicine Crocin is an
Analgesic and antipyretic
117) Least distance of distinct vision for normal eye is
25 cm
118) The test for diagnosing HIV is
ELISA
119) The medicine paracetamol is
An analgesic and antipyretic
120) Between small and large human intestine which one is longer?
Small intestine
121) What did Edward Jenner pioneer?
Vaccination
122) Which of the following is reared for its fleece/fiber?
Alpaca
123) Where in the human body can you find the islets of Langerhans?
Pancreas
124) Which is the only organ in the human body that can regrow/regenerate?
Liver
125) Pollination by wind is called?
Anemophily
126) When the human body temperature falls by about F below the normal body temperature, the condition is known
Hypothermia
127) A ______is a medical device for determining the approximate concentration of glucose in the blood.
Glucometer
128) A diet that contains the proper proportions of carbohydrates, fats, proteins, vitamins, minerals, fibrous indigestible material, nutrients and water necessary to maintain good health is called a ____.
Balanced diet
129) A fish’s heart pump only deoxygenated blood as it is a ___-chambered heart with an atrium and a ventricle.
Two
130) There are over capillaries in our lungs.
300 million
131) The function of the lens in our eyes is to
Change the focal distance of the eye
132) Arteries carry blood, that is filled with
Oxygen
133) ______is found in the plant cell but not in animal cell.
Chloroplast
134) _____ is the idea that new species are formed from the sudden and unexpected emergence of alterations in their defining traits.
Mutation
135) Spinal Cord originates from _________.
Medulla
136) A disease of dementia which increases the likelihood of young-onset Alzheimer is___________?
Down syndrome
137) Gout is a disease caused by excess accumulation of________?
Uric acid
138) What is the measure of temperature considered as normal in human body?
98.6 degree F
139) Zeatin is produced in ___________and transported to __________in the xylem where it promotes cell division.
Roots, Shoots
140) Allergy Screening Blood Test for human beings does not include _______.
HemoglobinA1C
141) ___________ is not caused by airborne transmission.
Hepatitis B
142) In human body, vertebrae are part of _________.
Spinal cord
143) The amount of light entering the human eyes is controlled by ___.
Pupil
144) The insect ‘Apis mellifera’ is commonly known as_______?
Honey Bee
145) Bone deformities occur due to________?
Excessive intake of Fluorine
146) ECG is done to diagnose an ailment related to________?
Heart
147) Rabies is usually transmitted through an animal bite, for example, from stray dogs. It is also known as ______.
Hydrophobia
148) ______ is caused by infection with a member of the genus Entero-virus known as poliovirus (PV).
Poliomyelitis
149) The part of the brain responsible for maintain balance like walking in a straight line or riding a bicycle is called-
Cerebellum
150) The complete digestion of carbohydrates, proteins and fats takes place in_______
Small Intestine
151) Paternity can be determined by highly accurate tests conducted on blood or tissue samples of the father, mother and child. ____is the most suitable to judge paternity.
DNA Test
152) What do Longitudinal waves not exhibit?
Polarization
153) What is the persistence of vision for human eye?
1/16th of a second
154) Where is Humerus bone situated?
Upper arm
155) What are the Number of the pairs of the spinal nerves?
31
156) What is the percentage of Plasma in the total blood volume in human beings?
55
157) _____is the main thinking part of the brain.
Fore Brain
158) Transpiration in tree is mainly effective during ______?
The time of sunset
159) Hemoglobin is used to transport _______.
Oxygen in human body
160) The building blocks of human body are_______.
Cells
161) Retina of human eye forms ____ and Inverted image.
Real
162) The _____ phenomenon which is responsible for the movement of water in plants is:
Concentration difference and Transpiration
163) The ending of a nerve cell used to acquire information from our environment is called:
Dendrite
164) The ________consists of cranial nerves arising from the brain and spinal nerves arising from the spinal cord.
Peripheral nervous system
165) Leukemia is a type of human disease which is
a cancer of the white blood cells
166) Science of the study of preserved remains or traces of animals, plants, and other organisms from the remote past is called
Paleontology
167) The plant hormone which is responsible for saving the crops from falling is ___.
Auxin
168) Gout is a disease caused by excess accumulation of________?
Uric acid
169) The ‘lock and key hypothesis’ mechanism is related with_________?
For enzyme specificity
170) The term Cyberknife is most closely associated with __________?
Cancer Surgery
171) Human blood platelets releases _________which helps in clotting of blood.
Prothrombin
172) Which part of the human brain is the centre for intelligence, memory and emotions?
Cerebrum
173) Which branch of medical science deals with the study and treatment of the liver?
Hepatology
174) A part in the human body which is popularly called the Adam’s apple is:
Thyroid
175) What type of medicine is used for treating indigestion?
Antacid
176) What is the Trachoma a disease of:
Eyes
177) A human adult’s entire digestive tract from mouth to anus is about _____meters long.
9
178) Human respiration releases
Carbon dioxide
179) Usually, colour blindness is
A genetic disposition.
180) Which is the fastest land animal in the World?
Cheetah
181) Rani khet bimari is a disease found in?
Poultry
182) Which tissue is responsible for flexibility in plants?
Collenchyma
183) What plant has the scientific name Solanum Tuberosum?
Potato
184) What are Vivipara?
Vertebrates that are born live
185) On an average, how many taste buds are present in a human tongue?
2000 to 8000
186) How many bones does a new born human baby have?
305
187) Birth control pills contain-
Mixture of progesterone and estrogen derivative
188) Dried fruit like raisins when soaked in water, bulge and get filled with water. What is the scientific reason that explains this daily life event?
Osmosis
189) Yeast used in making bread-
acts as a catalyst for fermentation.
190) Leprosy is also known as-
Hansen’s disease
191) A doctor advised a person to take injection of insulin because his/her:
Blood sugar was high
192) How many chambers in heart of frog?
3
193) What is the edible part of Lichi?
Aril
194) How many bones are present in face and skull of a human being?
22
195) What is the reason for the characteristic odour of garlic?
A sulphur compound
196) What is the main source of renin?
Kidney
197) Sphygmomanometer is used to measure which of the following?
Blood pressure
198) Corpus luteum secretes which hormone to maintain pregnancy?
Progesterone
199) Which vitamin is chemically named as Naphthoquinone?
Vitamin K
200) Malpighian tubules are associated with which biological process?
Excretion
201) The exudation of water droplets on the tips or edges of leaves of some vascular plants, is known as………..?
Guttation
202) Which bird is having the largest egg?
Ostrich
203) What is the main source of renin?
Kidney
204) Sphygmomanometer is used to measure ________
Blood Pressure
205) Corpus luteum secretes which hormone to maintain pregnancy?
Progesterone
206) ______is responsible for causing amoebic dysentery.
Protozoan
207) Malpighian tubules are associated with which biological process?
Excretion
208) The branch of biology which deals with insects is called as……..?
Entomology
209) Muscle pain that occurs after a hard workout in gym is due to
Formation of Lactic Acid
210) Which fruit is the only that wears their seeds on the outside?
Strawberries
211) In the plant kingdom Largest ovule is found in
Cycas
212) An edible part of cauliflower is called
flower
213) Gymnosperms plants produce neither flower nor fruit because they do not possess
Ovary
214) The process of taking food into our bodies is called ______
Ingestion
215) How much brain Leeches have?
32
216) How much blood an average adult can lose up to which blood pressure and heart rate will stay close to normal.
30 percent
217) Synthesized food is stored in which form in leaves?
Starch
218) Exobiology is the study of _____
Life on other planets
219) Red root is the another name of
Beet root
220) The process of water movement through a plant and its evaporation from aerial parts is called?
Transpiration
221) Name of the scientist who first studied living cells?
Robert Hooke
222) Which Vitamin is important for brain function the synthesis of red blood cells.
Vitamin B12
223) Genetic Mutation occurs in _______
DNA
224) The lifespan of white blood cells range from
13 to 20 days
225) Which animal that has a tongue longer than its body?
Chameleon
226) Plants absorb dissolved nitrates from soil and convert them into
Free nitrogen
227) When pollen tube enters the ovule through chalaza, it is-
Chalazogamy
228) Shedding of leaves, flower, fruit or seed in plants is due to _________
Abscisic acid
229) The dramatic changes in body features associated with puberty are mainly because of the secretions of:
Testosterone from testes and estrogen from ovary
230) The excretory unit of the human kidney is known as:
Nephron
231) What is the name of shortest bone in the human body?
Stapes
232) Potato is a ____.
Tuber
233) The segments of DNA or RNA coding for protein are called ?
Exons
234) Photosynthesis is the process by which plants______.
Produce food
235) Name the virus causing Chickenpox?
Varicella Virus
236) What is the normal temperature of human body?
37°C
237) Which compound present in D.N.A. does not form amino acid?
Tyrosine
238) How many times a healthy person’s average heart beats in a minute?
72 times
239) The hormone which is known as ‘emergency hormone’ is______?
Adrenaline
240) Blood, Bones and Cartilage are made up of a special type of_________?
Connective tissue
241) The sex of a newborn baby is determined by the chromosome inherited from_________?
The Father
242) What is the name of the longest cell in human body?
Nerve cell
243) Tikka disease is related with the crop___________?
Ground nut
244) Which mosquito causes Dengue fever?
Aedes aegypti
245) The gland which is responsible for growth and metamorphosis is_________?
Thyroid
246) Which disease is caused by the deficiency of calcium?
Osteoporosis
247) Which one is responsible for Coagulation of blood?
Fibrinogen
248) Among the biotic components of the ecosystem, the producer system is___________?
Green Plants
249) The disease caused by deficiency of protein in children is called________?
kwashiorkor
250) What is the average blood pressure of a human?
120/80
251) Alpha-keratin protein is present in which part/organ of human body?
Skin
252) What is the blood glucose level commonly expressed as?
milligram per deciliter
253) Which part of human body produces the bile juice?
Liver
254) A resting person usually has a pulse rate
Between 72-80
255) At the age of 3 years, the number of bones in human body is approximately
300
256) In human body, calcium and phosphate of blood are regulated by__________?
Parathyroid hormone
257) How much percentage of water in an infant human body is around?
78%
258) Many young people get acne and pimples on the face due to ________?
increased activity of Sebaceous gland
259) Lymphocyte cells are formed in ________?
Spleen
260) Phycology is the branch of Botany in which______?
we study about Algae
261) _______ is required for the synthesis of nucleic acid.
Folic acid
262) Hepatitis is a disease caused by________?
Viruses
263) Which of the following hormone accelerates the rate of heartbeat?
adrenaline
264) The enzyme which is necessary to bring about clotting of blood is_____?
thrombokinase
265) The energy released by 1 gram of glucose is________?
4 kcal
266) The plant dye Henna imparts orange-red colour to skin and hairs due to its reaction with ______?
Protein and amino acids
267) _______ is without red blood cells.
Earthworm
268) The corner of the cells of collenchyma tissue in plant is thickened due to_____?
deposition of Cellulose and pectin
269) Total salt content in blood is ________?
about 0.85 to 0.9%
270) The enzyme which is necessary to bring about clotting of blood is_____? .
thrombokinase
271) Why does only male frog produce croaking sound?.
because Male frog have three pair of vocal cord
272) The organelle in the cell, other than nucleus, contains DNA is_______?
Mitochondria
273) Thyroid gland is situated_______?
Below the Larynx
274) An organism which contains single chromosome and cell division occurs through fission or budding is____________?
Prokaryotes
275) A ________ is a type of virus that attacks only bacteria. It uses the bacteria to reproduce itself. Bacteriophages work by injecting their own DNA into bacterial cells.
bacteriophage
276) The plant hormone which is helpful in making RNA and protein is________?
Cytokinins
277) The part of human body which has greatest number Sweat glands is__________?
The palm of the hand
278) The unit of Nervous system is______________?
Neuron
279) _______ in Hindbrain controls the involuntary actions of our body.
Medulla
280) Leptospirosis is ………………………?
Infectious Disease
281) Cobalt is a component of the Vitamin_________?
Vitamin B12 .
282) The animals which eat both plants and animals are known as_________?
Omnivores
283) The disease which has a suffix encephalitis after its name is generally a disorder of ______?
Brain
284) The outer most boundary of cell is____________?
Plasma membrane
285) How does Dementia happen?
It may be caused due to HIV infection
286) The digestive enzyme ____ is required to digest fat.
lipase
287) What is the process of getting back a full organism from its body part called?
Regeneration
288) The ‘mad-cow disease’ is caused by__________?
Prion
289) Excess ______ are broken down in the liver to form urea. This is excreted by the kidneys in urine.
amino acids
290) The total number of permanent incisors in both the upper and lower jaws of the cattle and buffaloes are____?
8
291) What is Spermology?
it is the study of seed
292) What quantity of carbohydrates is present in a hen’s egg?
0.61 g
293) Deep fried foods contain which type of substances that harms health?
Carcinogenic
294) Scar tissues replace the original tissues of the organs in which viral disease?
Liver Cirrhosis
295) Southern blotting technique is used in…..?
To detect specific DNA sequence
296) Jaundice is an early symptom of which organ disease?
Liver
297) Osteoblast is commonly called as…..?
Bone cells
298) Which weed is widely used to reduce water pollution caused by industries effluents?
Elephant Grass
299) Silviculture is associated with which of the following?
Forest
300) Yawning is caused due to…..?
Excess concentration of carbon dioxide
301) Which element is crucially essential for blood clotting?
Calcium
302) Which part of eye is affected in myopia?
Eyeball
303) What is the estimated time taken by RBC to circulate in human body?
20 Sec
304) What does the little bumps on the tongue is called?
Papillae
305) In Cystic Fibrosis which part of body is damaged most?
Lungs and Pancreas
306) Which mineral is essential for the transportation of oxygen in the cell?
Iron
307) _______ is inflammation of the airspaces in the lungs which is most commonly caused due to an infection caused by the bacteria called Streptococcus pneumoniae.
Pneumonia
308) Which type of muscle represents voluntary action?
Skeletal
309) Antibody is also known as ______ (Ig) i.e. a large Y-shaped protein with both heavy and light polypeptide chains that is used by the immune system to lock neutralize the pathogens.
immunoglobin
310) Who proposes the theory of origin of life on earth?
Haldane
311) The component in light causes suppression of melatonin produced by the pineal gland is_______?
Blue
312) The disease is caused by deficiency of Nicotinic acid is_______?
Pellagra
313) The number of arteries present in Human Umbilical Cord are______?
2
314) An organ in human body produces albumin which is one of the major components of blood serum is________?
Liver
315) What is the process called by which new species develop from the existing species?
Speciation
316) What is called the longest fibre on the cell body of a neuron?
Axon
317) The bacterium which is responsible for the formation of curd is_________?
Lactic acid bacteria
318) _____ led to the expulsion of milk from the breast during suckling.
Oxytocin
319) Human Papilloma Virus is related to ________?
Cervical Cancer
320) Conchology is the study of …….?
Shell
321) Edible mushrooms are the typical example of ……?
Fungus
322) Which part of mollusc secretes the shell material?
Mantle
323) What are the Signs of Vitamin C Deficiency?
Fatigue
324) The corona virus that kills human is______?
SARS
325) Causing agent of a disease produces Integrase enzyme which is________?
AIDS
326) The group which represents the most commonly found cancers in the world is_______?
Carcinoma
327) In which part of the body digestion of protein begins?
Stomach
328) It is not advisable to sleep under a tree at night because of___________?
Release of carbon dioxide
329) Chicken pox is transmitted by which mode?
Air
330) Which is the largest part of pituitary gland?
Frontal lobe
331) How many stages of cell division are observed in mitosis?
5
332) Who is known as the father of microscopic anatomy?
Marcello Malphigi
333) Singer and Nicolsan were associated with …..?
Fluid Mosaic Model
334) Insulin’s are developed in which cell?
Beta cells of pancreas
335) Which vitamin is chemically named as Panothenic acid?
Vitamin B5
336) HIV attacks which cell on the very first invasion to the human body?
CD 4
337) Otology is associated with the study of ….?
Ear
338) The Glands which are associated with the Human Digestive System is_________?
Salivary Glands, Liver & Pancreas
339) The nerves which are attached to the brain and emerge from the skull is_________?
Cranial Nerves
340) What is the pigment that is responsible for absorption of light in plants?
Chlorophyll
341) What is the process of removal of toxic wastes from the body of an organism called?
Excretion
342) The part of the Quinine plant is commonly used drug for Malaria is_________?
Stem bark
343) An extension of the epidermal cells of a root which is in direct contact with the soil is__________?
Root Hairs
344) What is the Cause of Bunchy top of banana plant disease?
Virus
345) Pest-resistant cotton commonly known as ‘Bt-Cotton’ is genetically engineered by inserting a gene from a-
Bacteria
346) Which is the largest phylum in animal kingdom?
Arthropoda
347) Life span of RBC?
120 Days
348) Where the digestion of Proteins occurs?
Duodenum
349) Chemical Name of Vitamin E-
Tocopherols
350) What happen when one gets exposed to carbon monoxide which is extremely dangerous and can kill a patient?
COHb is stable compound and thus deprives blood of its ability to transport oxygen
351) The statement “I flatter myself having discovered the method that nature employs to purify air. It is vegetation.” who said?
Joseph Priestley
352) In how much time human will lose his consciousness if blood stops flowing to the brain?
5 sec
353) What is Bombyx mori that produces fine filaments of silk inside the cocoon?
Moth
354) Somatotrophic hormone affects the growth of which part of the human body?
Bones
355) Chemical name of Vitamin K is_________?
2 Methyl-1, 4-naphthoquinone
356) What is the ‘xylem’ in plants responsible for?
Transportation of water
357) The five major plant hormones are auxins, gibberellins, cytokinins, abscisic acid, and _____.
ethylene
358) What is the term used for pathological increase in the count of platelets?
Thrombocytosis
359) _______ is the master gland which is responsible for the secretion of major hormones like GH, FSH,PRL, ACTH, TSH and LH.
Pituitary gland
360) Myelin sheath is associated with
Neurons
361) Which cell organelles possess another set of DNA inside the cell body?
Mitochondria
362) ______, endoplasmic reticulum, hemoglobin and vesicles are together responsible to transport ions, molecules and protein as well in the human body.
Golgi bodies
363) As per the scientific theories human mind can be classified into how many stages?
Three
364) _____ is the most intelligent organism in the world.
Great Ape
365) ________ is the disorder of eye which is often called spider view. In this disorder a person cannot distinguish between horizontal and vertical lines.
Astigmatism
366) _______ is a viral disease cause by the mumps virus. It is recognized by fever, muscle pain, headache and poor appetite.
Mumps
367) ______, gibberellins are the hormones that promotes growth by promoting cell division whereas abscisic acid is a plant hormone that induces dormancy. Hence inhibits plant growth.
Auxins
368) ________ is a device which is used to measure blood pressure using the mercury. This device is also called blood pressure meter or blood pressure gauge.
Sphygmomanometer
369) The common salt is iodized to prevent the occurrence of which of the following diseases in the human body?
Goitre
370) Rh factor is related to-
Blood Transfusion
371) Chlorophyll, the green pigment of plants, Contains which of the following element-
Magnesium
372) ______ can be used as air pollution indicators, especially of the concentration of sulfur dioxide in the atmosphere.
Lichens
373) What is the protein inside red blood cells that carries oxygen?
Hemoglobin
374) _____ (or flowering hormone) is the hypothesized hormone-like molecule responsible for controlling and/or triggering flowering in plants.
Florigen
375) What is the acid that produces in stomach to help digestion of food?
Hydrochloric acid
376) Human body can store roughly ____ grams, or 2,000 calories’ worth, of carbohydrates in your liver and muscles.
500
377) ______ is a condition characterized by Bruising, bleeding gums, weakness, fatigue and rash are among scurvy symptoms by a prolonged deficiency of vitamin C(ascorbic acid) in the diet.
Scurvy
378) AIDS virus is made up of ?
Single-stranded RNA
379) Which deficiency is a disorder which may cause dental caries –
Fluorine
380) Antibody formation takes place in _____.
Lymphocytes
381) Query fever or q fever is spread to humans by ______
Animals
382) Neonatal tetanus is …..
Bacterial infection
383) Litmus, a water-soluble mixture, extracted from lichens is obtained from
Fungus
384) Lifespan of Leukocytes is-
13 to 20 days
385) _______also called leukocytes or leucocytes.
White blood cells (WBCs),
386) The long, slender projection of a nerve cell that conducts electrical impulses (carrying information) away from the nerve cell body and transmits this information to different neurons, muscles, and glands is known as-
Axon
387) When the electric impulse travels along the axon and reaches the other end called the synaptic terminal, this impulse triggers the release of-
Vesicles
388) The food which is going to enter small intestine from the stomach is acidic in nature and has to be alkaline for the pancreatic enzymes to act. Which is the organ that accomplishes?
Liver
389) ____ releases Bile juice which converts the acidic enzymes into alkaline.
Liver
390) Organisms using simple food material acquired from inorganic sources in the form of carbon dioxide and water are called-
Autotrophs
391) A _______ is a plant that derives some or all of its nutritional requirements from another living plant.
parasitic plant
392) ______ is found in two main areas – saliva in the mouth and pancreatic juice in the pancreas. Pancreatic juice is secreted into the small intestine where it helps continue digestion. In both areas amylase helps to break down starch into simpler sugars.
Amylase
393) ECG is done to diagnose an ailment connected with?
Heart
394) What is the most basic criteria used to decide whether something is alive?
Life processes
395) The site where complete digestion of carbohydrates, proteins and fats takes place is called-
Small Intestine
396) The ending of a nerve cell used to acquire information from our environment is called:
Dendrite
397) ______ are those where we act rapidly/ without thinking.
Reflex actions
398) Receptors used to detect taste are known as:
Gustatory receptors
399) _____ carries deoxygenated blood from different parts of body to the lungs via heart. And in order to prevent the back flow of deoxygenated blood they are provided with valves.
Vein
400) Biologically silk can be classified as …?
Protein
401) In which medium does the gastric juice works in an effective manner?
Acidic
402) A person is facing an issue regarding the metabolism of fats, which part of his brain can be said to malfunction?
Hypothalamus
403) Which catalyst is used in conversion of sucrose into glucose and fructose?
Invertase
404) Tuberculosis is which type of disease ?
Bacterial
405) ______curve is obtained when a population grows in the absence of environmental resistance .
J-shaped
406) ________ is secreted by pituitary gland which targets testes or ovaries and it is responsible for the development of corpus luteum and progesterone secretion in females and testosterone secretion in males.
Luteinizing hormone
407) The evolution of fish can be traced in which era?
Paleozoic
408) Which mosquito is responsible for Japanese encephalitis?
Culex
409) Wind, water, and animals are the _______to carry the seed from one place to another.
mediums
410) In prokaryotes during aerobic respiration one molecule of glucose releases ____.
36 ATP
411) ______ is secreted in stomach which converts protein into peptones.
Pepsin
412) _____ are thick walled as they carry oxygenated blood through them.
Arteries
413) Which organism has single functional ovary instead of two ovaries?
Birds
414) Ptyalin which is an enzyme present in human saliva acts on glucose to convert it into ….?
Maltose
415) Typhoid is caused due to the bacteria called ______.
Salmonella typhi
416) Eutrophication can cause a decrease in the quantity of …?
Dissolved oxygen
417) Which term is used for the application of biotechnology in medical process?
Red biotechnology
418) ______ is the first cloned pashmina goat, this cloning was jointly done by SKAUST and NDRI.
Noori
419) Mycorrhiza is said to be the mutualistic association between higher root of plants and …..?
Fungi
420) ______ is protein digesting enzyme which converts caseinogen in casein.
Rennin
421) Thrombocytosis indicates the pathological increase in ….?
Platelets
422) The systolic and the diastolic pressure of blood produces the lub dub sound in the ____.
heart
423) _______ is double walled cup like structure which constitutes nephron and carries out the ultra-filtration.
Bowman’s Capsule
424) In which form is the carbon dioxide circulated in the blood?
Magnesium Carbonate
425) What is the average gestation period of the cow?
280 days
426) ________contains a large amount of fat as compare to buffalo, cow and camel.
Reindeer’s milk
427) Anti-malarial drug quinine is made from the bark of ______.
cinchona
428) Which element increases the absorption of water in plants?
Manganese
429) Calcium is necessary for the strength of bones and teeth and is abundantly present in _____.
maize
430) Mutation refers to sudden change in the genetic composition and the theory was postulated by _____.
Hugo De Vries
431) The evolution of human species is mainly associated with …..?
Africa
432) Which cell has the ability to develop into any type of cell?
Stem Cell
433) Who determines the structure of DNA?
Watson and Crick
434) Which sugar is expressed in RNA?
Ribose
435) _______ is a multibranched polysaccharide of glucose that serves as a form of energy storage in humans, animals, fungi, and bacteria.Glycogen, sometimes called “animal starch”.
Glycogen
436) Which human organ is responsible for balancing water levels and salt levels?
Kidneys
437) Which vitamin is generally exerted by human in urine?
Vitamin C
438) The ______ are a group of seed-producing plants that includes conifers, cycads, Ginkgo, and gnetophytes.
gymnosperms
439) ______ was a female domestic sheep, and the first mammal cloned from an adult somatic cell, using the process of nuclear transfer.
Dolly
440) If the cell gets damaged, then one of the lysosomes bursts, releasing those digestive enzymes. The released enzymes then digest their own cell and ultimately the cell dies. Hence, lysosomes are called ______of the cell.
suicide bags
441) Beriberi is a disease caused by a vitamin B-1 deficiency, also known as ______.
thiamine deficiency
442) Hemophilia is :
Blood doesn’t clot normally
443) With which of the body organ ‘Pacemaker’ is associated with
Heart
444) Enzymes are known to catalyze more than 5,000 biochemical reaction types. Most enzymes are _____.
proteins
445) Femur is ……. in the human body?
Largest bone
446) The formation of blood platelets takes place in.
Bone marrow
447) Which vitamin Plays an important role in blood clotting?
Vitamin K
448) _____of sugarcane disease is caused by Colletotrichum falcatum Went
Red rot
449) The study of relations of organisms to one another and to their physical surroundings is defined as?
Ecology
450) HIV often changes its shape due to the presence of?
Reverse Transcriptase
451) Humerus bone is situated in-
Upper Arm
452) What is the name of the fungus that grows on bread?
Rhizopus
453) What is Quinine and is obtained from which plant?
bark, Cinchona plant
454) Chromosomes are found in?
Nucleus
455) If you are eating a carrot, that means you are eating a?
Root
456) Which plant hormone is known as STRESS HORMONE in plants?
Abscisic acid
457) In human each cell contains how many chromosomes.
46
458) The process of producing similar populations of genetically identical individuals is called-
Cloning
459) Yellow colour of cow’s milk is due to the presence of?
Carotene
460) Which part of the plant are the lungs of the plant?
Leaves
461) What name is given to organisms that are so small and can be seen through a microscope?
Microorganisms
462) Name the parts of Amoeba which help it in moving and also in capturing the food.
Pseudopodia
463) What type of plants can fix nitrogen gas of the air into compounds of nitrogen?
Leguminous plants
464) Food passes through the stomach directly by:
the small intestine
465) Your body needs vitamins and minerals because:
they help carry out metabolic reactions
466) Name the causative micro-organisms of the foot and mouth animal disease.
Virus
467) Those organisms which cannot make food themselves by the process of photosynthesis and take food from green plants or animals are called _____
Hetrotrophs
468) Alcohol is produced with the help of _______.
Yeast
469) A substance needed by the body for growth, energy, repair and maintenance is called a:
nutrient
470) How much energy per unit is liberated during anaerobic respiration?
28 KCal
471) Xerophthalmia is associated with the deficiency of __________.
Vitamin A
472) Which genetic disorder is associated with an additional chromosome 13?
Patau Syndrome
473) Henle’s loop which is associated with excretory system is found in which shape?
U – shaped
474) Sea Urchin is associated with which phylum?
Echinodermata
475) Which period evidenced the extinction of Dinosaurs?
Cretaceous
476) Fontana is associated with the discovery of ….?
Nucleolus
477) Dendrology is study of ….?
Trees
478) A person is feeling immense pain after an operation, which part of brain is making him feel such pain?
Thalamus
479) A vitamin is chemically called calciferol, it can be self synthesized by the body. It is likely to be…..?
Vitamin D
480) RBC when viewed single is ______ in colour but if viewed in group it appears red in colour.
yellow
481) _______ is highly modified saliva that consists zootoxin and is harmful for those creatures who lacks in the metabolism to digest it.
Snake venom
482) The smallest Human Chromosome is________?
Chromosome 21
483) The useful part of Zingier officinale is ____?
Rhizome
484) _______ is expressed in two numbers. The higher number is known as Systolic Pressure, or the amount of force (as measured in millimetres of mercury) that is exerted against the artery walls during a heartbeat (contraction). The lower number in the Diastolic pressure, which does the force exist while the heart is resting between beats.
Blood Pressure
485) Percentage of Glucose in the Urine of a healthy person is ___________?
0%
486) The bacterial cells which are found in cubical packets are _________?
Sarcinae
487) Largest animal Phylum from the following is_________?
Arthropoda
488) Hodophobia is a fear from_______?
Traveling
489) Plants having respiratory roots are________?
Mangroves
490) Rafflesia is which type of plant that has the largest flowers and found in many parts of the South East Asia?
Parasitic Plant
491) Lemurs belong to which group?
Primates
492) The calcareous sponges of class _____ are members of the animal phylum Porifera, the cellular sponges. They are characterized by spicules made out of calcium carbonate in the form of calcite or aragonite.
Calcarea
493) How many the Chromosomes are there, affected by Turner syndrome?
45
494) The process of cell division happens in_______?
mitosis
495) Hypoglycemia is correctly defined by__________?
Lower than normal level of thyroxin secretion
496) Pleura is found in which part of the human body?
Lungs
497) The most commonly found cancers in the world is from the group of____________?
Carcinoma
498) _______ is Radish. The Edible parts are roots, but Radish leaves and seedpods which are fruits are also edible.
Raphanus sativus
499) Who suggested first the existence of genes?
Gregor Mendel
500) The organism that grows on Common Bread is____________?
Mucor
