ANATOMY

Detailed explanation-1: -The stomach is known for its mechanical digestion and breakdown of protein and fat through its enzymes. Absorption takes place in the small intestine only. Therefore, the stomach does not participate in the absorption of nutrients.

Detailed explanation-2: -The stomach is a J-shaped organ that digests food. It produces enzymes (substances that create chemical reactions) and acids (digestive juices). This mix of enzymes and digestive juices breaks down food so it can pass to your small intestine.

Detailed explanation-3: -It is difficult for enzymes to work on the live protein chains lining your mouth, stomach and intestine. Those live protein chains are tightly coiled, which prevents enzymes from contact.

Detailed explanation-4: -Stomach: An organ with strong muscular walls, the stomach holds the food and mixes it with acid and enzymes that continue to break the food down into a liquid or paste.

Detailed explanation-5: -Pepsin is a stomach enzyme that serves to digest proteins found in ingested food. Gastric chief cells secrete pepsin as an inactive zymogen called pepsinogen. Parietal cells within the stomach lining secrete hydrochloric acid that lowers the pH of the stomach. A low pH (1.5 to 2) activates pepsin.