Question

A plant is kept in a dark cupboard for about 48 hours before conducting any experiment on photysynthesis to

• A. Remove starch from the plant.
• B. Ensure that starch is not translocated from the leaves.
• C. Remove chlorophyll from the leaf of the plant.
• D. Remove starch from the experimental leaf.

Answer 1

The correct option is D Remove starch from the experimental leaf.

Putting the plant in dark for 48 hours would stop the process of photosynthesis as light is required for it. Photosynthesis produces organic sugars which are stored in form of starch in plants. The absence of photosynthesis would lead to consumption of all stored starch making the leaf starchless. The correct answer is option D.