2nd Year Biology MCQs  F.Sc. Part 2
Chapter No.15
Homeostasis
Total MCQs = 50 

46. When an animal cell is placed in a hypotonic environment, it will:

(A) Undergo cytolysis
(B) Undergo plasmolysis
(C) Be at equilibrium
(D) Its furor pressure decreases

47. The contractile vacuole of a paramecium should be active when the paramecium is in:

(A) An isotonic environment
(B) A hypotonic environment
(C) A hypertonic environment
(D) Any environment

48. The tendency of a solution to take up water when separated from pure water by a selectively permeable membrane is called:

(A) Osmotic pressure
(B) Turgor pressure
(C) Diffusion pressure deficit
(D) Water potential

49. Xerophytes have:

(A) Deep roots for water uptake
(B) Succulent stems for storage of water
(C) Few stomata to limit water loss
(D) All

50. A plant without cuticle in leaves and stern, having increased number of stomata, partially or completely submerged in water is:

(A) Mesophyte
(B) Hydrophyte
(C) Both (A) and (B)
(D) Halophyte

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