How do the nucleus and the endomembrane system work together for protein synthes

Question

How do the nucleus and the endomembrane system work together for protein synthesis?

A. The endomembrane system processes and ships proteins specified by the nucleus. In the nucleus, DNA is used to make RNA which exits the nucleus and enters the cytoplasm of the cell. The ribosomes on the rough ER use the RNA to create the different types of protein needed by the body.

B. The endomembrane system processes and ships proteins specified by the nucleus. From the nucleus, RNA exits and enters the cytoplasm of the cell. The ribosomes on the rough ER use the RNA to create the different types of protein needed by the body.

C. The endomembrane system processes and ships proteins specified by the nucleus. In the nucleus, DNA is used to make RNA which exits the nucleus and enters the cytoplasm of the cell. The smooth ER uses the RNA to create the different types of protein needed by the body.

D. The endomembrane system processes and ships proteins specified by the nucleus. In the nucleus, DNA is used to make RNA which exits the nucleus and enters the cytoplasm of the cell. The ribosomes on the smooth ER use the RNA to create the different types of protein needed by the body.

Explanation / Answer

The answer is A.As DNA resides in the nucleus where by the process of transcription it is converted to m-RNA.This mRNA is transportes to cytoplasm for translation that is the formation of protein.Translation is done by ribosome present on rough ER and tRNA.ribosomes are not present on smooth ER.

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