Pigments Involved in Photosynthesis
Pigments Involved in Photosynthesis: Overview
This Topic covers sub-topics such as Carotenoids, Carotenes, Photosynthetic Pigments, Xanthophylls, Phycobilins, Chlorophyll Pigment, Accessory Pigments for Photosynthesis and, Effect of Different Wavelength of Light on Photosynthesis
Important Questions on Pigments Involved in Photosynthesis
What is PAR range?

Assertion : Cyclic pathway of photosynthesis first appeared in some eubacterial species.
Reason : Oxygen started accumulating in the atmosphere after the non-cyclic pathway of photosynthesis evolved.

If chlorophyll is burnt, then which of the following is left in ash?

A pigment which absorbs red and far-red light is

Three of the graphs below show the absorption spectra of photosynthetic pigments. One graph shows the action spectrum of photosynthesis for a plant containing the pigments.
All the axis show wavelength. Three of the axis show light absorption. One axis shows the rate of photosynthesis

The role of chlorophyll in photosynthesis is

Pigment system-I conducts

Which pigment acts directly to convert light energy to chemical energy?

Which wavelength of light carries out photosynthesis in bacteria?

The reaction centre of PS-II is_____.

The graph below represents the absorption spectrum of a major pigment contributing to photosynthesis.
Which one of the following best represents the photosynthetic efficiency of the pigment?

Chlorophyll and show maximum absorption in

Match the following column I with column II
Column | Column | ||
Chlorophyll- | Yellow-Orange | ||
Chlorophyll-b | Yellow | ||
Xanthophylls | Blue Green | ||
Carotenoids | Yellow Green |

A piece of carrot and a flower is put in water separately. The water becomes coloured in case of carrot but remains colourless in case of flower. It is because

Chlorophyll a occurs in

Which pigment is absent in chloroplast?

Which of the following is true?

In a molecule of chlorophyll, there is

Chlorophyll-b has the empirical formula

There are the two peaks of light absorption of Chlorophyll 'a'. The two peaks are near
