When you shine light having a wavelength of 660 nm on a plant, which of the following will most likely happen next?
A) Pfr is stored for later use.
B) Pr is synthesized.
C) Pr is converted to Pfr.
D) Pfr is converted to Pr.
E) Pr is degraded.

Question

Quizplus · Accepted Answer

When light having a wavelength of 660 nm is shone on a plant, Pr is converted to Pfr. This is because 660 nm is the wavelength of red light, which is absorbed by the phytochrome molecule and causes a conformational change that converts Pr to Pfr.

When You Shine Light Having a Wavelength of 660 Nm