Human nutrition Flashcards
1
Q
Ingestion
A
The taking of substances, e.g. food and drink, into the body through the mouth
2
Q
Mechanical digestion
A
The breakdown of food into smaller pieces without chemical change to the food molecules
3
Q
Chemical digestion
A
The breakdown of large, insoluble molecules into small, soluble molecules
4
Q
Absorption
A
The movement of small food molecules and ions through the wall of the intestine into the blood
5
Q
Assimilation
A
The movement of digested food molecules into the cells of the body where they are used, becoming part of the cells
6
Q
Egestion
A
The passing out of food that has not been digested or absorbed, as faeces, through the anus
