Q.

Grana are

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a

protein storing plastids.

b

coloured plastids.

c

stacks of thylakoids.

d

individual thylakoids present in stroma.

answer is C.

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Detailed Solution

Grana is a stacked membranous structure within the chloroplasts of plants and green algae that contains the chlorophyll (green pigment). It is the site of the light reactions of photosynthesis. The sac-like membranes that make up grana are known as thylakoids.
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