In which organelle does the light reaction of photosynthesis take place?

Answer 1

Light reaction of photosynthesis occurs in granum part of chloroplast.

Light reaction takes place in the granum part of the chloroplast because light is entrapped by the chlorophyll pigment found in the chloroplast, which is where photosynthesis takes place.

Since dark reaction depends on the byproducts of light reaction rather than direct light, it takes place in the stroma region of the chloroplast.

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Answer 2

Lydia Adams

The chloroplasts' thylakoid membranes are where the light reaction of photosynthesis occurs.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.