Topic 7

Question 1

Ingestion

Answer 1

The taking of a substance.

Question 2

Mechanical digestion

Answer 2

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

Question 3

Chemical digestion

Answer 3

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

Question 4

Absorptions

Answer 4

The movement of small food molecules and ions through the wall of the intestines into the blood.

Question 5

Assimilation

Answer 5

The movement of digested 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 digested or absorbed, as faeces, through the anus.