The most important function of endoplasmic reticulum is
A
Protein synthesis
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B
Nourishing the nucleus
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C
Secretion of materials
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D
To give shape to the cell
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Solution
The correct option is A Protein synthesis Rough Endoplasmic Reticulum (RER) is abundant in cells engaged in active secretion. Proteins synthesized by ribosomes pass into the lumen of RER which acts as a channel through which secretory proteins pass.