Question

If pepsin is not released by the gastric glands, which of the following events in the stomach will be affected?

a) Protein breaking down into smaller molecules

b)Corroding of inner lining of stomach

c)Flow of partially digested food

d)Creation of an acidic medium​

Answer 1

Answer:

protein breaking down into smaller molecules

Answer 2

If pepsin is not released by the gastric glands, protein breaking down into smaller molecules will be affected as explained below-

Pepsin is secreted by gastric glands in the inactive form as pepsinogen. The pepsinogen is activated into pepsin on exposure to hydrochloric acid. The function of pepsin is to convert the protein into proteoses and peptones.

Thus, if pepsin is not released, the breakdown of protein into smaller molecules will be affected.

b)Corroding of inner lining of stomach

This has no relation with pepsin. Corroding of inner lining of stomach is prevented by mucus secreted by gastric glands. It protects the corrosion of inner lining of stomach due to hydrochloric acid.

c)Flow of partially digested food

This is facilitated by the peristalsis, wave-like movement of stomach. Pepsin plays no role in this.

d)Creation of an acidic medium​

Creation of acidic medium is because of HCl, and not pepsin.

If pepsin is not released by the gastric glands, protein breaking down into smaller molecules in the stomach will be affected.