HORTICULTURE SCIENCE
PLANT BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Stack of thylakoids
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stack of chloroplast
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photosynthetic pigment molecule
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membrane enclosing a thylakoid
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Detailed explanation-1: -A granum (plural grana) is a stack of thylakoid discs. Chloroplasts can have from 10 to 100 grana. Grana are connected by stroma thylakoids, also called intergranal thylakoids or lamellae. Grana thylakoids and stroma thylakoids can be distinguished by their different protein composition.
Detailed explanation-2: -A stack of thylakoids is known as “Granum". It increases the surface area of the chloroplasts.
Detailed explanation-3: -Granum is a basic structural unit of the thylakoid membrane network of plant chloroplasts. It is composed of multiple flattened membranes forming a stacked arrangement of a cylindrical shape.
Detailed explanation-4: -Final answer: The stack of thylakoids of chloroplast is called a granum.
Detailed explanation-5: -A stack of thylakoid disk is organized to form grana. There are about 10 to 100 thylakoids within a granum and about 40-60 grana in a plant cell.