1000+ General Biology Set 2 Multiple Choice Question Answer [Solved]

1. Valves are present inside
A. arteries
B. capillaries
C. veins
D. aorta
Answer : C

2. Insect pollination is known as
A. Hydrophily
B. Ornithophily
C. Anemophily
D. Entomophily
Answer : D

3. Ecology of a population is known as
A. demecology
B. synecology
C. autecology
D. space ecology
Answer : A

4. It is possible to produce seedless tomato fruits by
A. applying trace elements in tomato fields
B. spraying mineral solution on plants
C. spraying harmones on flowers
D. applying fertilizers containing radioactive elements
Answer : C

5. Which one of the following is essential for blood clotting?
A. RBC
B. WBC
C. Blood platelets
D. Lymph
Answer : C

6. Blood clotting requires vitamin
A. A
B. B
C. C
D. K
Answer : D

7. The spores of Puccinia formed on the leaves of wheat are called
A. Basidiospores
B. Ascidiospores
C. Uredospores
D. Pycnospores
Answer : C

8. The specific gravity of blood is
A. lower than water
B. higher than water
C. same as water
D. many times that of water
Answer : B

9. Sleeping sickness in man is caused by the organism
A. plasmodium
B. entamoeba
C. giardia
D. trypanosome
Answer : D

10. The insects do not have blood pigments because
A. there is no blood
B. blood does not have a respiratory function
C. tissues have pigments
D. pigments are elsewhere
Answer : B

11. Athlete's Foot' is a disease caused by
A. Bacteria
B. Fungus
C. Protozoa
D. Nematode
Answer : B

12. Which one of the following is viral disease?
A. Syphilis
B. Influenza
C. Lock Jaw
D. Typhoid
Answer : B

13. What is the colour of the outer portion of the spinal cord?
A. gray
B. brown
C. white
D. yellow
Answer : C

14. Consumption of potassium cyanide leads to total stoppage of cellular activity in the human body, as it cripples the
A. heart
B. lungs
C. kidneys
D. mitochondria
Answer : D

15. The plants will stop growing if the shoot tip is cut off because
A. shoot tip produces growth hormones
B. shoot tip contains meristematic cells
C. shoot tip is the growing part
D. the plant dies
Answer : A

16. The biologist who believed in the spontaneous creation of microorganisms was
A. Leuwenhock
B. Needham
C. Spallanzeni
D. Pasteur
Answer : B

17. The grey matter of the brain is so coloured because of the concentration of
A. nerve cells
B. a pigment
C. nerve fibres
D. melanin
Answer : A

18. Which organism probably arrived first in the world?
A. Algae
B. Fungi
C. Protozoa
D. None of the above
Answer : A

19. The function of connective tissue is
A. to hold the other tissues together
B. to facilitate diffusion
C. to help transportation of dissolved material from capillaries to epithelial cells
D. protection
Answer : A

20. The function of ribosomes is
A. Secretion
B. Excretion
C. Power house of the cell
D. Protein synthesis
Answer : D

21. In movable joints the tips of the bones are covered with
A. hyaline cartilage
B. calcified cartilage
C. elastic cartilage
D. fibrous cartilage
Answer : A

22. If a father has blood group A and the mother has blood group 0, which one of the blood groups may be found in their progeny?
A. A
B. AB
C. O
D. Both (a) and (c)
Answer : D

23. What is the bacterial disease in lime fruits?
A. Phythophthora
B. White rust
C. Citrus canker
D. Smut disease
Answer : C

24. Loss of blood is
A. clotting
B. receding
C. healing
D. drying up
Answer : A

25. The plant hormone which promotes ripening of fruits is
A. auxin
B. ethylene
C. gibberellin
D. cytokinin
Answer : B

26. Which of the following diseases is not caused by a virus?
A. Cancer
B. Rabies
C. AlDS
D. Severe Acute Respiratory Syndrome (SARS)
Answer : A

27. Who is called the father of modem antiseptic surgery?
A. Edward Jenner
B. Joseph Lister
C. Louis Pasteur
D. William Harvey
Answer : B

28. Excess of amino-acids are broken down to form urea in the
A. Liver
B. Kidney
C. Spleen
D. Rectum
Answer : A

29. The thermoregulatory centre in the human brain is the
A. Pituitary
B. Spinal cord
C. Cerebellum
D. Hypothalamus
Answer : D

30. Which of the following is a disease of brain?
A. SARS
B. AlDS
C. Diabetes
D. Alzheimer's
Answer : D

31. Biocatalysts are
A. hormones
B. vitamins
C. enzymes
D. pheromones
Answer : C

32. Animals that feed only on dead flesh are
A. herbivorous
B. carnivorous
C. omnivorous
D. carrion-eaters
Answer : D

33. Bovine Spongiform Encephalopathy refers to
A. Brain Fever
B. Mad Cow Disease
C. Enteric Fever
D. Poultry Diarrhoea
Answer : B

34. AIDS is caused by the organisms which are
A. bacteria
B. fungi
C. viruses (HTLV III)
D. Protozoa
Answer : C

35. Temperature treatment which shortens the vegetative period and hastens the flowering is called
A. Phototropism
B. Photoperiodism
C. Vernalisation
D. Thermoregulation
Answer : C

36. The medulla oblongata encloses the
A. optic lobe
B. optic capsule
C. second ventricle
D. fourth ventricle
Answer : B

37. The plant cells are surrounded rigidly by
A. plasmalemma
B. cell membrane
C. cell wall
D. plasma membrane
Answer : C

38. Vitamins A and C are predominantly present in
A. brinjal
B. lady's finger
C. potato
D. tomato
Answer : D

39. Malarial parasite is brought to human host by
A. male anopheles mosquito
B. female anopheles mosquito
C. male culex
D. female culex
Answer : B

40. The muscles of the heart are
A. striated and involuntary
B. striated and voluntary
C. smooth and involuntary
D. smooth and voluntary
Answer : A

41. Blood is a kind of
A. epithelial tissue
B. connective tissue
C. nervous tissue
D. cartilage
Answer : B

42. The disease in which blood clotting does not take place is known as
A. Xerophthalmia
B. Haemopoeisis
C. Haemophilia
D. Haemoerythrin
Answer : C

43. Darwinism does not explain
A. progression
B. retrogression
C. usefulness of all organs
D. presence of vestigial organs
Answer : D

44. The spider spins its web from a liquid secreting from its
A. posterior silk gland
B. posterior abdomen glands
C. mouth
D. salivary glands
Answer : A

45. Nephrons are found inside
A. Liver
B. Lung
C. Brain
D. Kidneys
Answer : D

46. Hormones are carried from their place of production by
A. ducts
B. blood
C. lymph
D. muscus
Answer : B

47. The condition in which there is abnormal decrease of white blood corpuscles is known as
A. leukaemia
B. leucoderma
C. leukopenia
D. anaemia
Answer : C

48. The white blood corpuscles the body because they are popularly called soldiers of
A. march at a regular pace
B. appear uniform
C. defend the body
D. are disciplined
Answer : C

49. The 'mad-cow disease' (Jakob-Creutzfeldt disease) is produced by certain
A. bacterium
B. virus
C. viroid
D. prion
Answer : D

50. Tetrodotoxin is a potent poison that
A. erodes blood vessels
B. blocks conduction of nerve impulses causing respiratory paralysis
C. produces damage to the kidneys
D. produces intestinal bleeding
Answer : B