Enzymes are biological catalysts. On page 100, the text usually emphasizes that enzymes are specific (each enzyme only breaks down a certain type of nutrient) and require specific conditions, such as a particular temperature ( ) and acidity level (pH), to function correctly.
: How food is physically broken down (chewing) versus chemically transformed (enzymatic reactions). Typical Questions & Answers 1. What are the main functions of the digestive system? Mechanical processing : Grinding and mixing food.
: Splitting complex organic molecules (proteins, fats, carbohydrates) into simpler, absorbable ones using enzymes. Absorption : Moving nutrients into the blood and lymph. Excretion : Removing undigested food remains from the body.
The 100th page of the typically focuses on the Digestive System , specifically the anatomy and functions of the digestive tract and the roles of various digestive glands .
: Contains glands that secrete gastric juice and protective mucus. Submucosa : Contains blood vessels and nerves.