Non-cyclic Photophosphorylation - Photosynthesis

Question 1

1.

Answer 1

Light energy is absorbed by both photosystems, resulting in the release of high energy electrons.

Question 2

2.

Answer 2

Electrons from PS2 are taken up by electron acceptor and passed down series of electron carriers.

Question 3

3.

Answer 3

This ETC is used to release energy by phosphorylating ADP + Pi to ATP.

Question 4

4.

Answer 4

Electrons from PS1 are passed along electron carrier chain, generating more ATP. Electrons lost from PS2 replace those lost in PS1.

Question 5

5.

Answer 5

Water undergoes photolysis where its split into oxygen, electrons and H+, under the influence of light energy.

Question 6

6.

Answer 6

Electrons from photolysis replace those lost in PS2.

Question 7

7.

Answer 7

H+ ions from water and electrons from PS1 combine to reduce NADP.

Question 8

In what conditions does it occur?

Answer 8

Occurs in all light conditions.

Question 9

Where does it occur?

Answer 9

Thylakoid membrane.

Question 10

What does it produce?

Answer 10

It produces ATP, oxygen and reduced NADP to be used in the light-independent stage.