________digestion occurs in small intestine through the action of enzymes.
PlZ help ASAP
the answer is Chemical
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Sure! I'd be happy to help.
Digestion in the small intestine is facilitated by the action of enzymes. Enzymes are proteins that speed up the chemical reactions involved in breaking down food into smaller molecules that can be absorbed by the body.
To understand how digestion occurs in the small intestine, you can follow these steps:
1. Start with the basics of the digestive system: The digestive system is a series of organs that work together to break down food and absorb nutrients. It includes organs like the mouth, esophagus, stomach, small intestine, and large intestine.
2. Focus on the small intestine: The small intestine is a long, tube-like organ located after the stomach. It receives partially digested food from the stomach and continues the process of digestion.
3. Understand the role of enzymes: Enzymes are produced by various organs, including the pancreas and small intestine itself. In the small intestine, the enzymes primarily responsible for digestion are peptidases, sucrase, maltase, lactase, and lipase. These enzymes break down proteins, carbohydrates, and fats into simpler substances.
4. Enzymatic digestion process: As food enters the small intestine from the stomach, it mixes with digestive juices containing enzymes. These enzymes break down complex molecules into smaller ones. For example, peptidases break proteins into amino acids, sucrase and maltase break down complex sugars into simple sugars, lactase breaks down lactose (milk sugar), and lipase breaks down fats into fatty acids and glycerol.
5. Absorption of nutrients: Once the food is broken down by enzymes, the small intestine absorbs the nutrients into the bloodstream. The inner lining of the small intestine is covered with tiny finger-like projections called villi, which increase the surface area for absorption.
So, digestion in the small intestine occurs through the action of enzymes, which break down food into smaller molecules that can be absorbed by the body.