Question

A biologist predicted that if part of a leaf is shaded and other parts of the leaf are fully illuminated then equal amounts of starch will subsequently be found in the shaded and illuminated parts of the leaf. On which of the following is this biologist most likely basing his prediction?
1. Chlorophyll is present in both the shaded and illuminated parts of the leaf.
2. Photosynthesis occurs at an accelerated rate in the shaded parts of the leaf.
3. Carbon dioxide and water can enter cells in both the shaded and illuminated parts of the leaf.
4. Shading part of the leaf increases the rate at which photosynthesis occurs in the illuminated part of the leaf.
5. Starch can move to different parts of the leaf.

Answer 1

Answer:

Option 5. Equal amounts of starch can be achieved only if starch moves from an area of high starch production to an area of lower starch production.

Explanation: