Photosynthesis Questions

CAM helps the plants in:

${\text{C}}_4$ plants are more efficient in photosynthesis than ${\text{C}}_3$ plants due to:

The process which makes major difference between C3 and C4 plants is:

In a chloroplast the highest number of protons are found in:

Emerson’s enhancement effect and Red drop have been instrumental in the discovery of:

A plant avoids photorespiratory losses, has improved water use efficiency, shows high rates of photosynthesis at high temperatures and has improved efficiency of nitrogen utilization. To which physiological group does this plant belong?

In photosynthesis, the light-independent reactions take place at:

The oxygen evolved during photosynthesis comes from water molecules. Which one of the following pairs of elements is involved in this reaction?

Anoxygenic photosynthesis is characteristic of:

A process that makes an important difference between $C_3$ and $C_4$ plants is:

Which one of the following is essential for photolysis of water?

$\text{PGA}$ as the first ${\text{CO}}_2$ fixation product was discovered in photosynthesis of:

Photosynthesis in C4 plants is relatively less limited by atmospheric CO2 levels because :

Cyclic photophosphorylation results in the formation of:

Oxygenic photosynthesis occurs in:

Manganese ($\text{Mn}$) is required in:

Electrons from excited chlorophyll molecules of Photosystem II are accepted first by:

In leaves of ${\text{C}}_4$ plants, malic acid synthesis during ${\text{CO}}_2$ fixation occurs in:

${\text{C}}_4$ plants are photosynthetically more efficient than ${\text{C}}_3$ plants because:

The first acceptor of electrons from an excited chlorophyll molecule of photosystem II is:

In the leaves of $C_4$ plants, malic acid formation during ${\text{CO}}_2$ fixation occurs in the cells of:

The atmospheric concentration of $C{O}_2$ at which photosynthesis just compensates for respiration is referred to as $C{O}_2$ compensation point.

Assertion : $C_4$ photosynthetic pathway is more efficient than the $C_3$ pathway.Reason : Photorespiration is suppressed in $C_4$ plants.