AP BIOLOGY

Detailed explanation-1: -Peristalsis is so powerful that foods and liquids you swallow enter your stomach even if you are standing on your head. Figure 1: Peristalsis moves food through the digestive tract with alternating waves of muscle contraction and relaxation. Digestion includes both mechanical and chemical processes.

Detailed explanation-2: -Absorption. The simple molecules that result from chemical digestion pass through cell membranes of the lining in the small intestine into the blood or lymph capillaries. This process is called absorption.

Detailed explanation-3: -Peristalsis is a series of wave-like muscle contractions that move food through the digestive tract. It starts in the esophagus where strong wave-like motions of the smooth muscle move balls of swallowed food to the stomach.

Detailed explanation-4: -As food passes through the GI tract, it mixes with digestive juices, causing large molecules of food to break down into smaller molecules. The body then absorbs these smaller molecules through the walls of the small intestine into the bloodstream, which delivers them to the rest of the body.

Detailed explanation-5: -This process is called as assimilation. To learn more about Digestion and Absorption of Digested Foods, visit BYJU’S.