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Potato tuber strips measuring 5 cm were ...

Potato tuber strips measuring 5 cm were prepared and placed in Petri dishes filled with varying concentrations of sucrose solution (0.0M to 0.6M). After 20 minutes, their final lengths were recorded and their percentage change in length calculated. The graph below shows the percentage change in length of potato strips in increasing concentrations of sucrose solution.

Which of the following can be correctly in ferred from the given graph?

A

0.3 M sucrose solution is isotonic to cell sap of potato cells.

B

Negative percentage change in potato strip length is due to endosmosis.

C

Positive percentage change in potato strip length is due to exosmosis.

D

0.6 M sucrose solution is hypotonic and 0.2 M sucrose solution is hypertonic to cell sap of potato cells.

Text Solution

Verified by Experts

The correct Answer is:
A
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