- Water potential gradient between the absorbent and the
liquid imbibed is essential for imbibition. In addition, for any
substance to imbibe any liquid, one of the following is also
a prerequisite.
(a) Affinity between the adsorbant and the liquid
(b) Molecular density of the adsorbant
(c) Concentration of the adsorbant
(d) Pressure potential of the adsorbant - The hormone that promotes rapid elongation of internode
or petiole in deep water rice plant is
(a) abscisic acid (b) ethylene
(c) cytokinin (d) gibberellin. - Which of the below mentioned properties is not true with
respect to facilitated transport?
(a) Requires special membrane proteins
(b) Transport saturates
(c) uphill transport (d) Highly selective - Conversion of pyruvic acid into ethyl alcohol is facilitated by
the enzymes
(a) carboxylase (b) phosphatase
(c) dehydrogenase
(d) decarboxylase and dehydrogenase. - Which of the following is responsible for the production of
progesterone, (the hormone responsible for the maintenance
of endometrium)?
(a) uterus (b) Graafian follicle
(c) Corpus luteum (d) Ovary - The number of chromosomes in meiocyte (2n) in apple is
(a) 24 (b) 380
(c) 34 (d) 20. - A contraceptive pill prevents ovulation by
(a) blocking Fallopian tube
(b) inhibiting release of FSH and lH
(c) stimulating release of FSH and lH
(d) causing immediate degeneration of released ovum. - A true fruit is one in which the fleshy part of the fruit is
derived from the
(a) thalamus (b) ovary
(c) inflorescence axis (d) apocarpus gynoecium. - The sequence of amino acids in a protein is determined by
(a) genetic code (b) m-RNA
(c) t-RNA (d) r-RNA. - One of the methods by which DNA cannot be transferred to
the host cell is by
(a) microinjection
(b) gene gun
(c) disarmed pathogen vectors
(d) polymerase chain reaction.
59. Which of the following sequence is correct for the origin of
lysosome?
(a) Endoplasmic reticulum → Golgi complex → lysosomes
(b) Nuclear membrane → Golgi complex → l ysosomes
(c) Endoplasmic complex → Vacuoles → l ysosomes
(d) Mitochondria → Golgi complex → lysosomes
60. A patient with bleeding gums is advised to take fresh fruits
and vegetables in diet specially because he suffers from
(a) scurvy (b) night blindness
(c) beri-beri (d) anaemia.
Answer Key
- (b) 2. (b, c & d) 3. (a) 4. (a) 5. (c)
- (c) 7. (None) 8. (a) 9. (a) 10. (b)
- (b) 12. (b) 13. (b) 14. (a) 15. (a)
- (b) 17. (d) 18. (a) 19. (b) 20. (c)
- (c) 22. (b) 23. (a) 24. (a) 25. (a)
- (a) 27. (c) 28. (d) 29. (b) 30. (c)
- (d) 32. (d) 33. (a) 34. (a) 35. (a & b)
- (b) 37. (c) 38. (b) 39. (a) 40. (c)
- (c) 42. (c) 43. (b) 44. (b) 45. (c)
- (b) 47. (c) 48. (c) 49. (a) 50. (b)
- (c) 52. (d) 53. (c) 54. (c) 55. (b)
- (b) 57. (a) 58. (d) 59. (a) 60. (a)