Photosystem II

Q.

Assertion: Protons or hydrogen ions produced by photolysis of water accumulate in the lumen of thylakoids.
Reason: Photolysis of water takes place in the inner membrane of thylakoids.

1. Both, assertion and the reason are true and the reason is the correct explanation of the assertion.

2. Both, assertion and the reason are true but the reason is not the correct explanation of the assertion.

3. The assertion is true but the reason is false.

4. Both, the assertion and the reason are false.

Q. Which one of the following ion is essential for photolysis of water?

1. Calcium
2. Boron
3. Manganese
4. Zinc

Q. The light-dependent reaction begins with

1. Photosystem I
2. Photosystem II
3. Plastoquinone
4. Plastocyanine

Q.

The primary electron acceptor of PSII is

1. Fd

2. Pheophytin

3. Plastocyanin

4. FeS

Q. Electrons from excited chlorophyll molecule of photosystem II are accepted first by:

1. Plastoquinone
2. Ferredoxin
3. Cytochrome -b
4. Cytochrome -f

Q. In Photosystem II , the active chlorophyll is

1. $P_{700}$
2. $P_{673}$
3. $P_{680}$
4. $P_{720}$

Q. Which of the following statements about Photosystem II is correct

1. does not have a reaction center
2. Has P700 at its reaction center
3. Passes electrons to Photosystem I
4. Is reduced by NADPH

Q. The first acceptor of electrons of photosystem 2 is a quinone, the first acceptor of electrons of photosystem 1 is An iron sulphur protein, then what is pheophytin?