ANATOMY

Detailed explanation-1: -The hydrochloric acid in the gastric juice breaks down the food and the digestive enzymes split up the proteins. The acidic gastric juice also kills bacteria.

Detailed explanation-2: -Acid that is released into the stomach from glands in the stomach wall. It helps digest food.

Detailed explanation-3: -Glands in your stomach lining make stomach acid and enzymes that break down food. Muscles of your stomach mix the food with these digestive juices. Pancreas. Your pancreas makes a digestive juice that has enzymes that break down carbohydrates, fats, and proteins.

Detailed explanation-4: -With a pH between 1 and 3, gastric acid plays a key role in digestion of proteins by activating digestive enzymes, which together break down the long chains of amino acids of proteins. Gastric acid is regulated in feedback systems to increase production when needed, such as after a meal.

Detailed explanation-5: -Assists in the digestion of food (by dissolving chemical bonds within food molecules) Activates stomach proteases (e.g. pepsin is activated when pepsinogen is proteolytically cleaved in acid conditions) Prevents pathogenic infection (stomach acids destroy microorganisms in ingested food)