The Emerson enhancement effect and the Red drop phenomenon were crucial in uncovering the existence of:

I. Cyclic photophosphorylation needs PS-I and PS-II

II. Cyclic photophosphorylation produced NADPH + H^+ and ATP

III. Cyclic photophosphorylation involves ${H_2}O$

IV. Electrons are recycled in cyclic photophosphorylation

Identify the correct and incorrect statement and select the option accordingly

What is the function performed by plant pigments?

Oxygen is produced during the light-dependent reactions. What is the source of this oxygen?

Which type of plant would be MOST suitable for cultivation in hot, arid regions where water conservation and efficient photosynthesis are crucial, and photorespiration is a major concern?

In the process of photosynthesis, water molecule breaks during

The wave length of light absorbed by reaction centre of PS-II is?

Energy is …A… to pump protons across a membrane, to create a gradient or high concentration of protons within the thylakoid …B… ATPase has a channel that allows diffusion of protons back across the membrane. This releases enough energy to activate …C… enzyme that catalyses the formation of ATP.

Complete the given NCERT statement by filling appropriate option in the given blanks

I. Cyclic photophosphorylation needs PS-I and PS-II

II. Cyclic photophosphorylation produced NADPH + H^+ and ATP

III. Cyclic photophosphorylation involves ${H_2}O$

IV. Electrons are recycled in cyclic photophosphorylation

Identify the correct and incorrect statement and select the option accordingly

The movement of electrons in ETC in light reaction is?

Photosynthesis is A) Anabolic process B) Endergonic process C) Physico-biochemical process D) Amphibolic process