Question

Choose the correct statements regarding digestion.

1) Digestion is the process of breaking down food into smaller molecules.
2) Digestion occurs only in the mouth and stomach.
3) Enzymes play a crucial role in the process of digestion.
4) Digestion is not necessary for the body to obtain nutrients.
5) Digestion begins in the small intestine.

Answer 1

1 and 3

Step-by-step explanation:

digestion occurs other places not just the mouth and stomach, digestion is very necessary to obtain nutrients, digestion actually starts in the mouth

Answer 2

Digestion is the process of breaking down food into smaller molecules. Mechanical digestion occurs in the mouth and stomach, while chemical digestion occurs mainly in the small intestine.

Step-by-step explanation:

Digestion is the process of breaking down food into nutrients. There are two types of digestion, mechanical and chemical. In mechanical digestion, large chunks of food are broken down into small pieces. Mechanical digestion begins in the mouth and involves physical processes, such as chewing. This process continues in the stomach as the food is mixed with digestive juices. In chemical digestion, large food molecules are broken down into small nutrient molecules. This is a chemical process which also begins in the mouth as saliva begins to break down food and continues in the stomach as stomach enzymes further digest the food. Absorption is the process that allows substances you eat to be taken up by the blood. After food is broken down into small nutrient molecules, the molecules are absorbed by the blood. After absorption, the nutrient molecules travel in the bloodstream to cells throughout the body. This happens mostly in the small intestine.