Question

2.1.2 quiz: protein synthesis
question 6 of 10
how do the endoplasmic reticulum and golgi apparatus interact during protein production?
a. vesicles in the endoplasmic reticulum modify and fold proteins that are built in the golgi apparatus.
b. the golgi apparatus receives proteins from the rough endoplasmic reticulum and stores them for later use.
c. mrna comes from the golgi apparatus and is translated by the endoplasmic reticulum into polypeptide chains.
d. the golgi apparatus attaches to the endoplasmic reticulum and makes proteins that function when embedded in a membrane.

Explanation:

• In protein production, the rough endoplasmic reticulum (RER) synthesizes proteins.
• These proteins are then transported to the Golgi apparatus via vesicles.
• The Golgi apparatus modifies (e.g., glycosylation), sorts, and stores these proteins for secretion or use within the cell.
• Option A is incorrect because vesicles transport proteins from RER to Golgi, not the other way around for modification/folding.
• Option C is wrong as mRNA is translated in the RER (by ribosomes attached to it), not the Golgi.
• Option D is incorrect as the Golgi does not attach to the RER to make membrane - embedded proteins; it modifies and packages them.

Answer:

B. The Golgi apparatus receives proteins from the rough endoplasmic reticulum and stores them for later use.