Anatomy & Physiology of the Stomach [Part 2} | Lipases in the Stomach

The video explains the digestion processes in the stomach, focusing on the roles of pepsin and lipases. It highlights the secretion of pepsinogen and gastric lipase by chief cells, and the activation of lingual lipase in the stomach. The breakdown of triglycerides into fatty acids is discussed, with an emphasis on the continuation of digestion in the small intestine.

What is the primary role of pepsin in the stomach?

• To degrade proteins into smaller peptides and amino acids

• To neutralize stomach acid

• To break down carbohydrates

• To activate gastric lipase

Which enzyme is secreted by the chief cells of the stomach?

• Lactase

• Lingual lipase

• Amylase

• Gastric lipase

What happens to triglycerides in the stomach?

• They are converted into proteins

• They are converted into diglycerides and free fatty acids

• They are absorbed directly

• They are stored as fat

Why is lingual lipase not active in the mouth?

• It requires a low pH to be activated

• It is inhibited by saliva

• It is only secreted in the stomach

• It requires a high pH to be activated

Where is the digestion of triglycerides completed?

• In the mouth

• In the large intestine

• In the small intestine

• In the stomach