Cyclic photophosphorylation results in the production of ATPs and not NADPH. Give reasons.

3

(a)

Two groups (A and B) or bean plants of similar size and same leaf area were placed in identical conditions. Group A was exposed to light of wavelength 400-450 nm Group B to the light of wavelength of 500-550 nm.Compare the photosynthesis rate of two groups by giving reason.

3

(a)

In what kind of plants do you come across Kranz anatomy? To which conditions are those plants better adapted? How are these plants better adapted than the plants, which lack this anatomy?

3

(a)

Give reasons for the following.
(i) Plants are the lungs of nature.
(ii) Chlorophyll-b and other accessory pigments are necessary for photosynthesis.
(iii) In the high light intensities, the chlorophyll-a gets damaged.

3

(a)

Explain the reasons of following.
(i) Photosynthesis can occur in the absence of light.
(ii) Even non-green leaves can make the food.
(iii) Photosynthesis can occur under water.

3

(a)