Alimentary canal key words Flashcards
1
Q
What is chemical digestion?
A
The break down of large, insoluble molecules into small, soluble molecules.
2
Q
What is mechanical digestion?
A
The breakdown of food into smaller pieces without chemical change to the food molecules
3
Q
What is absortion?
A
The movement of small food molecules and ions through the wall of their intestine into the blood
4
Q
What is assimilation?
A
The movement of digested food molecules into the cells of the body where they are used, becoming part of the cells
5
Q
What’s egestion?
A
The passing out of food that has not been digested or absorbed, as feaces through the anus
6
Q
What is ingestion?
A
The taking of substances into the body through the mouth
