Question:

Which pigment absorbs the red and farred light

Updated On: Jun 23, 2024

Cytochrome
Phytochrome
Carotenoids
Chlorophyll

Hide Solution

Verified By Collegedunia

The Correct Option is B

Solution and Explanation

A light-sensitive pigment found in some bacteria, fungi, and plants is called phytochrome. There are two interchangeable variants of it: Pr and Pfr. Pfr reflects far red light with a wavelength of 730 nm. It transforms back into its native state, Pr, when it absorbs far red light. Therefore, Pfr is the phytochrome's active form, which prevents blooming.

Was this answer helpful?

Questions Asked in NEET exam

View More Questions

Concepts Used:

Photosynthesis in Higher Plants

Processes Of Photosynthesis in Higher Plants:

Photosynthesis in higher plants involves the following processes:

Light Reaction
Dark Reaction

Light Reaction:

This phenomenon occurs in the presence of light.
The pigment absorbs light and produces energy in the form of ATP.
The process involves- absorption of light, water splitting, the release of oxygen, and formation of ATP and NADPH.

Dark Reaction:

This process occurs in the absence of light in the stroma of the chloroplasts. The following cycles are involved in the process:

Calvin Cycle (C3 Cycle)
C4 Cycle (Hatch and Slack Pathway)

List-I (Conversion)		List-II (Shape/geometry)
(A)	1 mol of H₂O to O₂	(I)	3F
(B)	1 mol of MnO^-₄ to Mn²⁺	(II)	2F
(C)	1.5 mol of Ca from molten CaCl₂	(III)	1F
(D)	1 mol of FeO to Fe₂O₃	(IV)	5F