Question

Which option shows correct pairs of Column - I and Column - II.

Column - I	Column - II
(i) Plasmolysis	(a) Phenomenon when a cell is placed in an isotonic solution
(ii) Cells turgidity	(b) Cytoplasm loses contact with the cell wall
(iii) Flaccid cell	(c) Phenomenon when a cell is placed in a hypotonic solution
(iv) Incipient plasmolysis	(d) Phenomenon when a turgid plant cell is placed in an hypertonic solution

• A. i - d, ii - c, iii - a, iv - b
• B. i - c, ii - a, iii - b, iv - d
• C. i - b, ii - d, iii - a, iv - c
• D. i - d, ii - c, iii - b, iv - a

Answer 1

The correct option is A i - d, ii - c, iii - a, iv - b

a) Plasmolysis is the phenomenon when a turgid plant cell is placed in a hypertonic solution. In this, protoplast of the cell contracts due to loss of water.

b) Cells turgidity is the phenomenon when a cell is placed in a hyptonic solution. In this, cell becomes turgid due to intake of water.

c) Flaccid cell remains as it is when it is placed in the isotonic solution as the inner and outer solute concentration remains the same.

d) Incipient plasmolysis is the phenomenon when a cell loses contact with the cell wall. It is defined as a point at which the protoplast is just about to pull away from the cell wall is called incipient plasmolysis.

Thus, the correct answer is 'i - d, ii - c, iii - a, iv - b'.