MCQs Biology F.Sc. Part 2 (2nd Year)
Chapter No.15
HomeoStasis
41. A cell is placed in a solution and swells. This solution is:
(A) Isotonic to cell
(B) Hypertonic to cell
(C) Hypotonic to cell
(D) None of these
Answer:
Hypotonic to cell
42. In an isotonic there would be:
(A) No net movement of water
(B) Net movement of water into the cell
(C) Net movement of water out of the cell
(D) Bursting of the cell
Answer:
No net movement of water
43. A cell whose internal salt concentration is 0.3 per liter is placed in a solution having salt concentration 0.5 per liter. The solution is
(A) Isotonic to the cell
(C) Hypertonic to cell
(B) Hypotonic to the cell
(D) None of these
Answer:
Hypertonic to cell
44. Osmosis is defined as:
(A) Flow of solvent through Semi-permeable Membrane from higher to less concentrated solution
(B) Flow of solvent through semi-permeable membrane from less to higher concentrated solution
(C) Flow of a solute from a semi-permeable membrane
(D) Flow of water without membrane
Answer:
Flow of solvent through semi-permeable membrane from less to higher concentrated solution
45. Plasmolysis of a human red blood cell would occur if the cell were:
(A) In an isotonic solution
(B) In a hypertonic solution
(C) In a hypotonic solution
(D) None of the above
Answer:
In a hypertonic solution
