Hi there,

Internal membranes play important roles in protein production and processing except they do NOT

a. anchor ribosomes in place.
b. transport substances.
c. contain the hereditary information for the protein.
d. modify proteins to go into vesicles.

Is it C?

To determine the correct answer, let's analyze each option:

a. Anchor ribosomes in place: Internal membranes do play a role in anchoring ribosomes in place. This is because ribosomes are associated with the endoplasmic reticulum, a network of membranes within the cell.

b. Transport substances: Internal membranes are involved in transport processes within the cell. They help regulate the movement of molecules and substances, allowing them to be transported to specific locations within the cell or outside of it.

c. Contain the hereditary information for the protein: This statement is incorrect. The hereditary information for proteins is stored in the DNA, which is located in the nucleus of the cell. It is then transcribed into messenger RNA (mRNA) and translated into proteins by the ribosomes.

d. Modify proteins to go into vesicles: Internal membranes are responsible for modifying proteins and preparing them for transport. This includes processes such as folding, glycosylation, and adding signal peptides that allow the proteins to be properly packaged into vesicles for transport to their target destinations.

Based on this analysis, option c is correct. Internal membranes do not contain the hereditary information for the protein.