Unit 7 - Human Nutrition

Question 1

Ingestion

Answer 1

The taking in of substances (food and drink) into the body through the mouth.

Question 2

Mechanical Digestion

Answer 2

The breakdown of food into smaller pieces without chemical change to the food molecules.

Question 3

Chemical Digestion

Answer 3

The breakdown of large insoluble molecules into small, soluble molecules.

Question 4

Absorbtion

Answer 4

The movement of small food molecules and ions through the walls of the intestine into the blood.

Question 5

Assimilation

Answer 5

The movement of digestion food molecules into cells of the body where they are used becoming part of the cells.

Question 6

Egestion

Answer 6

The passing out of food that has not been digestion or absorbed, as faeces, through the anus.