Question

With which of the following process Cholodny-Went theory is concerned?

• A. Phototropism
• B. Photomorphogenesis
• C. Photorespiration
• D. Photoperiodism

Answer 1

The correct option is A Phototropism

In terms of phototropism and gravitropism, the Cholodny-Went theory proposes that (a) auxin is synthesized in the coleoptile tip (b) the coleoptile tip perceives the asymmetric illumination and this causes auxin to move into the un-irradiated side (c) auxin moves down the coleoptile so that lower regions develop an auxin asymmetry and (d) the higher auxin concentration on the un-irradiated side causes the coleoptile to bend toward the light source.

so, the correct answer is 'Phototropism'