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PS I and PS II occur over...

`PS` I and `PS` II occur over

A

Grana of chloroplast

B

Matrix of mitochondria

C

Stroma of chloroplast

D

Inner membrane of mitrochondrion.

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The correct Answer is:
A
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Assertion: The stoma lamellae have both PS I and PS II. Reason: The grana lamellae lack PS II and well as NADP reductase enzyme.

Assertion : The stromal thylakoids are rich in both PS I and PS II Rason : The granal membranes are rich in ATP synthetase.

Assertion: Stroma lamellae have both PS I and PS II but the membrane of grana lack PS II as well as NADP reductase. Reason: Cyclic photophosphorylation also occurs when only light of wavelength below 680 nm is available for excitation.

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Assertion: PS I and PS II are named in sequence of their function during the light reaction or photochemical phase. Reason: Each photosystem has one molecule of chlorophyll-a forming a light harvesting complex called antenna.

Assertion. In light reaction of photosynthesis, light is required for the functioning of PS I and PS II and Production of NADPH and ATP. Reason. Dark reaction does not occur in light.