Question

Fig. 1.2(a) shows the same cell after it had been placed in solution A for ten minutes. The cell was then transferred to solution B and Fig. 1.2(b) shows how it appeared after a further ten minutes. с Fig. 1.2(a) Fig. 1.2(b) (b) Explain what has occurred to cause the cell to appear as it does in Fig. 1.2(a). --------13) 590 2013​

Answer 1

Answer:

(i) Exosmosis (exit of water) has resulted in the shrinkage of the protoplasm of cell B.

(ii) Plasmolysis and deplasmolysis.

(iii) When plant cells are kept in a hypertonic solution, exosmosis takes place. This process is called plasmolysis.

(iv) Hypertonic solution.

(v) The cell in B can be brought back to its original condition by placing it in a drop of distilled water.

(vi) 1. Cell wall, 2. Plasma membrane, 3. Chloroplast.

Explanation:

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