GENERAL ANATOMY
CELLULAR ANATOMY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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lack ribosomes
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stores energy
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is made of protein
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transports organic compounds
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Detailed explanation-1: -The most basic difference between RER and SER is the presence of ribosomes. When ribosomes attach to the surface of an ER, it gives a characteristic rough appearance; hence it is called Rough ER. On the other hand, a smooth ER does not have ribosomes on its surface. It possesses ribosomes attached to its membrane.
Detailed explanation-2: -Smooth endoplasmic reticulum lacks ribosomes and helps synthesize and concentrate various substances needed by the cell.
Detailed explanation-3: -The SER is considered “smooth” because, without ribosomes on its surface, they appear smooth. The main function of SERs is the synthesis of phospholipids. However, they also play a pivotal role in the synthesis of steroid hormones. RER (Rough ER) is involved in protein synthesis.