Revision For The 7B Test Flashcards Homework
1
Q
What does the term ingestion mean?
A
When the mouth takes in substances: food and drinks.
2
Q
What does the term digestion mean?
A
It is the process of breaking down food.
3
Q
What does the term absorption mean?
A
Absorption is the process of taking nutrients from the digestive system into the blood so they can be used in the body.
4
Q
What is an enzyme?
A
An enzyme is a protein that helps speed up chemical reactions.
5
Q
How do villi increase the rate of absorption?
A
They have a thin wall which increases the speed of absorption.
6
Q
A
