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Question

The barrier which separates the protoplasm from the external environment is known as


A

Plasma membrane

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B

Chlorophyll

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C

Ribosomes

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D

Nucleus

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Solution

The correct option is A

Plasma membrane


The barrier which separates the protoplasm from the external environment is known as plasma membrane. Chlorophyll is the pigment which imparts a green colour to the plant. Ribosomes are present in large numbers in all living cells and serve as the site of protein synthesis. The nucleus is the membrane-bound organelle found in the eukaryotic cell that stores hereditary material and controls the overall activity of the cell


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