Question

Which pigment is involved in photoperiodic change in plants?

• A. Phytochrome
• B. Cytochrome
• C. Chlorophyll
• D. Anthocyanin

Answer 1

The correct option is A

Phytochrome

Phytochrome is a pigment universally present in green flowering plants and is mainly responsible for photomorphogenic changes and developmental processes in them.

Cytochrome is an iron-containing hemeprotein that takes part in various metabolic activities.

Chlorophyll is a green pigment involved in photosynthesis.

Anthocyanins are water-soluble vacuolar pigments that may appear red, purple or blue.