Phytochrome red (P _r) differs from phytochrome far-red (P _fr) in that A) P _r is converted to P _fr during the nighttime. B) P _r is converted to P _fr by absorbing sunlight. C) P _fr is converted to P _r by absorbing sunlight. D) P _fr is converted to P _r by absorbing far-red light that is available at dusk. E) P _r is converted to P _fr by absorbing far-red light, which is available only during full daylight.

Question

Quizplus · Accepted Answer

Phytochrome red (Pr) is converted to phytochrome far-red (Pfr) by absorbing red light, which is a component of sunlight. This conversion is a key part of how plants detect and respond to light, enabling them to regulate growth and development according to the light conditions.

Phytochrome Red (P r) Differs from Phytochrome Far-Red (P fr)

Phytochrome Red (P _r) Differs from Phytochrome Far-Red (P _fr)