Question

Filling the blanks

1. Digestion is the

and

metabolism.

processes taking place in the

gastrointestinal tract by which food is broken down into absorbable forms. It is related to, but not the same as

2. The

or Gl tract or.

canal is the system of organs that

takes food, digests it to extract energy and nutrients, and expels the remaining waste.

3. The mouth or

cavity or oral cavity is the orifice through which we take in food or water.

Answer 1

Digestion is the process of breaking down food into nutrients through mechanical and chemical processes. Absorption allows the nutrients to be taken up by the blood and transported to cells throughout the body.

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.

Answer 2

Digestion is the mechanical and chemical breakdown of food in the gastrointestinal tract. The GI tract includes several organs where different stages of digestion and nutrient absorption occur, starting with the mouth and ending with the large intestine.

Step-by-step explanation:

1. Digestion is the mechanical and chemical processes taking place in the gastrointestinal tract by which food is broken down into absorbable forms. It is related to, but not the same as metabolism.

2. The gastrointestinal (GI) tract or digestive canal is the system of organs that takes food, digests it to extract energy and nutrients, and expels the remaining waste.

3. The mouth or buccal cavity or oral cavity is the orifice through which we take in food or water.

Digestion includes both mechanical digestion, which begins in the mouth with the process of chewing, and chemical digestion, where enzymes break down food into small molecules. Absorption of these nutrients occurs in the bloodstream, primarily in the small intestine. The large intestine is responsible for water absorption and the formation of feces.