In protein synthesis,the endoplasmic reticulum
A) is the site of mRNA attachment.
B) is the site where all ribosomes bind.
C) is the site of translation of membrane-bound and exported proteins.
D) produces tRNAs.
E) brings together mRNA and tRNA.

Question

Quizplus · Accepted Answer

The endoplasmic reticulum is a site for translation of membrane-bound and exported proteins. Ribosomes bind to the rough endoplasmic reticulum during protein synthesis, but not all ribosomes bind here. The mRNA attaches to the ribosome, not the endoplasmic reticulum. The endoplasmic reticulum does not produce tRNA or bring together mRNA and tRNA.

In Protein Synthesis,the Endoplasmic Reticulum