When light intensity increases, water content decreases due to high temperature. Hence, it becomes the limiting factor.

Phytol chain of chlorophyll is lipophilic. Hence, it is a non-polar part of the chlorophyll molecule.

It is the addition of electrons. In the conversion of phosphoglyceric acid to phosphoglyceralaldehyde, acid is converted to aldehyde, which is a reduction reaction.

CAM plants are the succulents found in deserts, where carbon dioxide fixation occurs during night. Hence, their stomata remain open during the night.

Kranz anatomy (mesophyll is divided into spongy parenchyma and bundle sheath cells) is the characteristic of C4 plants.

No, C4 plants show C2 cycle as in C2 cycle, photorespiration occurs and the first stable compound formed is a two carbon compound, i.e. phosphoglycolate.

DCMU  3-(4-chlorophenyl-1,1-dimethylurea} inhibits PS2 phase of phtosynthesis.

Normally photosynthesis stops at larger wavelength but when it is supplemented by the light of shorter wavelength, the normal  growth is resumed.

Manganese complex is required for the evolution of oxygen during non-photophosphorylation part of the light reaction.

It is a C4 plant. Hence, it follows the 'hatch slack' pathway.

High concentration of oxygen and low carbon dioxide favour photorespiration.

In this step, carbon dioxide enters and is reduced to form starch.

Exclusive photosynthesis for about an hour will lead to the formation of both sugar and starch. Hence, labelled carbon will be found in these forms together.

Light reaction occurs exclusively in grana.

This is the true characteristic of C4 plants.