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Question

Number of thylakoids stacked in a granum is

A
5 - 10
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B
10 - 100
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C
100 - 150
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D
150 - 200
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Solution

The correct option is B 10 - 100
A thylakoid is a membrane-bound compartment inside chloroplasts and cyanobacteria. They are the site of the light-dependent reactions of photosynthesis. Thylakoids consist of a thylakoid membrane surrounding a thylakoid lumen. Thylakoids frequently form stacks of disks referred to as grana. Grana are connected by intergranal or stroma thylakoids, which join granum stacks together as a single functional compartment. A single granum contains around 10-100 thylakoids arranged in a stack.
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