Stomach cells are moderately well adapted to the acidity and protein-digesting activities in the stomach by having ________.

Question

Quizplus · Accepted Answer

Stomach cells are adapted to the acidity and protein-digesting activities in the stomach by having a thick, mucous secretion that protects the epithelial cells from the acid and active mitosis of epithelial cells that replace the damaged ones. This maintains the integrity of the stomach lining despite the harsh conditions. Additionally, the presence of H. pylori is not considered as an adaptation but rather a potential cause of stomach ulcers. While chief cells secrete enzymes like pepsinogen, it is not necessary for adaptation to the acidic environment. Parietal cells secrete hydrochloric acid, which is not a base, making D incorrect. E, the cell wall impermeable to acid, is not applicable as stomach cells are animal cells with a plasma membrane that is not impermeable to acid.

Stomach Cells Are Moderately Well Adapted to the Acidity and Protein-Digesting