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  4. In cells actively participating in protein synthesis and secretion, which of the following organelles is frequently found?

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Q. In cells actively participating in protein synthesis and secretion, which of the following organelles is frequently found?

NTA AbhyasNTA Abhyas 2022

Solution:

The ER often shows ribosomes attached to their outer surface. The endoplasmic reticulum bearing ribosomes on their surface is called the rough endoplasmic reticulum (RER). In the absence of ribosomes, they appear smooth and are called the smooth endoplasmic reticulum (SER). RER is frequently observed in the cells actively involved in protein synthesis and secretion. They are extensive and continuous with the outer membrane of the nucleus.