explain the digestion of food in stomach and small intestine
Answers
Answer:
The stomach slowly empties its contents, called chyme, into your small intestine. Small intestine. The muscles of the small intestine mix food with digestive juices from the pancreas, liver, and intestine, and push the mixture forward for further digestion.
STOMACH»
The stomach stores the incoming food, mixes it with digestive juices, and slowly empties its contents into the small intestine. The cells lining its wall secrete dilute hydrochloric acid that assists in the breakdown process.
SMALL INTESTINE»
In the small intestine, the food is mixed with digestive juices from the pancreas, liver, and intestine. The walls of the small intestine are specialized to absorb the nutrients from the digested food into the bloodstream. The blood delivers these nutrients to various body parts.
Various enzymes aid the process of digestion and their effectiveness depends on different pH levels. A pH too high (basic) or too low (acidic) might denature a particular enzyme and prevent it from performing its function. Saliva keeps the pH in the mouth between 6.5 and 7, optimum for the enzyme salivary amylase to act on carbohydrates. Pepsin that helps digest proteins in the stomach, works best at a pH around 2, while the enzymes that function in the intestines (including peptidases and maltase), work best at a pH around 7.5.