Chapter 46, Problem 4MC

Summary Introduction

Introduction:

Phytochromes are the important photopigments present in plants that are used to detect light. Plants detect light using phytochrome molecules, proteins linked to pigment molecules that absorb a specific wavelength of light. Light energy causes the photopigments to alter its chemical configuration, initiating a series of biochemical changes that cause a response in the organism. Phytochromes influence many plant response such as it to control seed germination, flowering, and elongation of the shoot.