Question
Biology Question on plant growth and development
Phytochrome is involved in
A
phototropism
B
photorespiration
C
photoperiodism
D
geotropism.
Answer
photoperiodism
Explanation
Solution
Phytochrome is a photoreceptor molecule which mediates several developmental and morphogenetic responses of plants to light. This is called photoperiodism. Borthwick, Hendicks and Parker in 1952, discovered phytochrome, which is a pigment received light existed in two inter convertible forms active form and inactive form.