Question

Choose the correct answer from the alternatives given.
Other than functions related to photoperiod, a major role of phytochrome is to detect the extent of:

• A. leaf shading`
• B. stem growth
• C. leaf movements
• D. stomatal opening

Answer 1

The correct option is C leaf movements

Phytochrome operates in nature as a signal-transducing photoreceptor enabling the plant to acquire information on the light environment which may be applied to the modulation of cellular processes, thereby enabling acclimation to environmental change.

Apart from that it also assists in leaf development and leaf movement.

So, the correct option is 'leaf movement'.