8 Questions
What is the primary function of saliva in the mouth during digestion?
To help convert food into an aqueous slurry
What maintains the low pH in the stomach?
ATP-dependent proton pump
What happens to proteins in the stomach due to the low pH environment?
Proteins are denatured by the low pH
Why is it important for food to be homogenized in the mouth?
To make the food more readily attacked by digestive enzymes
What is the initial step of protein degradation in the stomach?
Action of pepsin
What stimulates the pancreas to release digestive enzymes into the intestine?
Protein digestion in the stomach
What is the role of the gall bladder in digestion?
Release of bile salts for lipid digestion
What neutralizes the pH of the food as it leaves the stomach?
Large amounts of sodium bicarbonate (NaHCO3) released by the pancreas
Test your knowledge on the process of protein digestion, starting with the action of pepsin in the stomach and the role of pancreatic enzymes in further degradation in the intestine. Understand the sequence of events leading to the digestion of proteins, lipids, and carbohydrates.
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