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Assertion: The rough endoplasmic reticulum is involved in protein synthesis and processing.
Reason: The rough endoplasmic reticulum is covered with ribosomes, which are responsible for the synthesis of proteins that are destined for secretion or for use in the cell membrane.
Both Assertion (A) and Reason (R) are the true and Reason (R) is a correct explanation of Assertion (A).
Both Assertion (A) and Reason (R) are the true but Reason (R) is not a correct explanation of Assertion (A).
Assertion (A) is true and Reason (R) is false.
Assertion (A) is false and Reason (R) is true.
Answers (1)
In eukaryotic cells, the rough endoplasmic reticulum (RER) is an organelle that is involved in the production and processing of proteins. Ribosomes, which are important for synthesising proteins intended for secretion or usage in the cell membrane, cover the RER.
Proteins are produced by the ribosomes and threaded into the RER lumen, where they undergo processing and modification. For instance, within the RER's lumen, some proteins may go through folding or glycosylation. The proteins are packaged into vesicles once they have undergone the appropriate processing and modification and are then transported to their final locations, which may involve secretion out of the cell or integration into the cell membrane.
Overall, the rough endoplasmic reticulum is a critical organelle involved in protein synthesis and processing, and the ribosomes on its surface play a key role in synthesizing proteins that are necessary for the proper function of the cell.
Correct option is 1.
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