Biology MCQ Quiz Hub

1. Which of the following hormones has intracellular receptors?
cortisol.
insulin.
epinephrine.
none

2. Flowers in which polllination takes place by insect their pollen grains are ________
Smooth and dry
Rough and sticky
Rough and dry
Large in Size

3. In which organ RBC are selectively destroyed/recycled by macrophages?
Kidney
Pancreas
Spleen
Liver

4. Which organ is the main digester and absorber of food?
Stomach
Liver
Colon
Small intestine

5. Infection of salivary glands by a virus leads to
tetanus
mumps
pyorrhoea
ulcers

6. Which of the following is not a function of saliva?
contains fluoride to harden the tooth enamel
moistens food and helps stick it together to make it easier to swallow
begins the chemical breakdown of starches
helps clean the mouth

7. Scientist who discovered blood groups
Krebs
Pavlov
Karl Landsteiner
Darwin

8. Muscles get tired when there is shortfall of ___________.
Lactic acid
Na+ ions
ATP
Sulphates

9. The rate of respiration per minute in a new born baby
18 times
32 times
26 times
16 times

10. Which tissue provides support to plants and also stores food?
Parenchyma
Collenchyma
Sclerenchyma
No option is correct

11. Closely stacked flattened sacs (plants only)
Vacuoles
Lysosomes
Golgi apparatus
None of the above

12. The arbor vitae refers to
the pleatlike convolutions of the cerebellum
cerebellar gray matter
flocculonodular nodes
cerebellar white matter

13. Which organelle is the control center of a cell?
Nucleus
Cytoplasm
Cell membrane
endoplasmic reticulum

14. Which of the following is an Autoimmune disease?
Systematic lupus erythematosus
Acute anaphylaxis
Farmer's lung
A heart attack

15. Which statement regarding the mammalian heart is correct?
Blood is pumped from the heart via the atria.
Oxygen-loaded blood moves only through the right side of the heart.
When the right atrium contracts, it forces blood into the left atrium.
In the adult heart, blood in the right chambers of the heart cannot enter the left chambers without passing through the lungs.

16. Who is known as father of Biology
Aristotle
Darwin
Lamark
Linneus

17. Melvin calvin got Noble Prize for his studies on
Light reaction
Plant hormones
Carbon fixation
Photons

18. Select the correct statement about cellular respiration?
All the carbon atoms in glucose ultimately incorporated during cellular respiration into carbon dioxide molecule
All the carbon atoms in glucose ultimately incorporated during cellular respiration into NADH molecule
All the carbon atoms in glucose ultimately incorporated during cellular respiration into ATP molecule
All the carbon atoms in glucose ultimately incorporated during cellular respiration into water molecule

19. The external oblique muscle is named due to its
Action
Fiber detection
Location
Attachment points

20. Photosynthesis fulfills which of the following requirements of the autotrophic organisms? I. Carbon II. Water III. Energy
Only I
Only III
I and III
All I, II and III

21. Where does cellular respiration take place in the cell?
cytoplasm
mitochodria
Ribosomes
Chromosomes

22. Study of inter relationship between living organism and their environment is called _______
Plant Geography
Plant social science
Ecology
Ecosystem

23. The storage form of glucose in animals is
Starch
Glucose
Glycogen
None of the above

24. Which statement is true about blood alcohol concentration?
The higher the blood alcohol concentration, the more severe the hangover will be.
Drinking coffee and exercising will lower your blood alcohol concentration.
Blood alcohol concentration is affected by factors such as body size and gender.
None of the above

25. Which formula represents an amino acid?
R-CH3(NH2)-COOH
R-CH(NH2)-COOH
R-CH2(NH2)-COOH
R-CH3(NH2)-COH

26. Sponges are most accurately described as
marine predators
chemoautrophs
filter feeders
freshwater scavengers

27. Organisms that live in the deep sea are mainly
Herbivores
Carnivores
Detritivores
None of the above

28. The inherited traits of an organism are controlled by
DNA
Enzymes
Nucleotides
RNA

29. Lobar Pneumonia refers to a lung infection in which it affects
large part of the lobe or lung
small segment of the lung
both lungs
None of the above

30. Organisms that depend only on raw plant products are said to be
herbivorous
vegetarian
carnivorous
omnivorous

31. How many amino acids are found in living organisms?
1500
3000
20
4

32. Important component that helps in clotting of the blood is called ____.
Haemoglobin
Platelets
Serum
Plasma

33. Secondary consumers are eaten by larger
fast animal
animal in the third trophic level
herbivorous animal
predator

34. In photosynthesis________
Light energy is converted into chemical energy
Chemical energy is converted into Light energy
Chemical energy is converted into electrical energy
Light energy is converted into Mechanical energy

35. Genes are made of
Carbohydrates
Proteins
Fats
Nucleotides

36. Phage typing is based on the fact that
viruses cause disease
bacteria and viruses are related
bacteria are destroyed by viruses
bacterial viruses attack specific cells

37. Which of the following is not a function of proteins?
Build tissues such as bone and muscle
Help to fight disease
Nail formation
Store and transmit Heredity

38. Synapsis occurs during
Mitosis
Meiosis
Both A & B
None

39. Compared to land, the open oceans
are rich in silica and iron
are nutrient-poor environments
contain unlimited nitrogen
are nutrient-rich environments

40. Nucleoli are present during
prophase
anaphase
interphase
prometaphase

41. Veins seen in the leaves, serve the function of
Transpiration
Photosynthesis
Storage
Conduction

42. Which of these is Not a Carcinogen?
Cadmium
Asbestos
Benzene
All the above

43. Which of the following can be a symptom of AIDS?
Hair loss
Severe weight gain
Tiredness
All the above

44. Higher doses of barbiturates result in
Lack of emotional control
Impaired thinking
Both A & B
None of the above

45. Which of the following organelle is known as the 'Power House' of the cell?
Golgi Bodies
Ribosomes
Mitochondria
None of these

46. Which of the following muscular tissue is multinucleated?
Smooth muscle
Cardiac muscle
Skeletal muscle
Unstriated muscle