Question

A parietal cell is a cell in the stomach that helps to digest food. Using your knowledge from what you’ve learned in class, would you think it is bigger or smaller than a glucose molecule?

a. Bigger
b. Smaller

Answer 1

A parietal cell is bigger than a glucose molecule.

Step-by-step explanation:

Parietal cells are among the most highly differentiated cells in the stomach and are responsible for producing hydrochloric acid (HCl) and intrinsic factor. HCl is needed to activate the protein-digesting enzyme, pepsin, and helps denature proteins for enzymatic digestion. Glucose molecules, on the other hand, are small molecules that can easily pass through cell membranes. Based on this information, a parietal cell is bigger than a glucose molecule.