Assertion (A): Increase in proton gradient inside lumen responsible for ATP synthesis
Reason (R): Oxygen evolving complex of PS I located on thylakoid membrane facing Stroma, releases H⁺ ions

(a)

Both Assertion and Reason are True.

(b)

Assertion is True and Reason is False.

(c)

Reason is True and Assertion is False.

(d)

Both Assertion and Reason are False.

Which chlorophyll molecule does not have a phytol tail?

(a)

Chl - a

(b)

Chl - b

(c)

Chl - c

(d)

Chl - d

The correct sequence of flow of electrons in the light reaction is _______.

(a)

PS II, plastoquinone, cytochrome, PS I, ferredoxin.

(b)

PS I, plastoquinone, cytochrome, PS II ferredoxin.

(c)

PS II, ferredoxin, plastoquinone, cytochrome, PS I.

(d)

PS II, plastoquinone, cytochrome, PS II, ferredoxin.

For every CO₂ molecule entering the C₃ cycle, the number of ATP & NADPH required ________.

(a)

2ATP + 2NADPH

(b)

2ATP + 3NADPH

(c)

3ATP + 2NADPH

(d)

3ATP + 3NADPH

Identify true statement regarding light reaction of photosynthesis.

(a)

Splitting of water molecule is associate with PS I.

(b)

PS I and PS II involved in the formation of NADPH + H⁺

(c)

The reaction center of PS I is Chlorophyll a with absorption peak at 680 nm.

(d)

The reaction center of PS II is Chlorophyll a with absorption peak at 700 nm.