Question

What is meant by chemical digestion?

Options:
A) Large insoluble molecules are broken down into small soluble molecules
B) Large soluble molecules are broken down into small insoluble molecules
C) Small insoluble molecules are built up into large soluble molecules
D) Small soluble molecules are built up into large insoluble molecules

Answer 1

Chemical digestion is the process of breaking down large, complex food molecules into smaller, simpler nutrient molecules. It begins in the mouth and stomach but primarily occurs in the small intestine.

Step-by-step explanation:

Chemical digestion is the process by which large, complex food molecules are broken down into smaller, simpler nutrient molecules that can be absorbed by the blood. This type of digestion begins in the mouth and stomach but occurs mainly in the small intestine.

In chemical digestion, starting in the mouth, digestive secretions break down complex food molecules into their chemical building blocks. These secretions typically contain water, various enzymes, acids, and salts. The process is completed in the small intestine.