The Digestive System Flashcards
1
Q
What does the digestive system do?
A
Breaks down food
2
Q
Importance of carbohydrates
A
Provides a source of immediate energy
3
Q
Importance of proteins
A
Structural components
4
Q
Importance of vitamins
A
Used to make enzymes
5
Q
Importance of minerals
A
Structural components
6
Q
The two methods of food digestion
A
- Physical digestion
- Chemical digestion
7
Q
Describe physical digestion
A
When food gets broken down through mechanical movement of organs and tissues
8
Q
Describe chemical digestion
A
Digestion through enzymes and stomach acid
9
Q
The four steps of digestion
A
- Ingestion
- Digestion
- Absorption
- Elimination/egestion
10
Q
Describe ingestion (2.3)
A
- The first step of digestion
- Teeth, saliva, and tongue
11
Q
Describe digestion (2)
A
- The second second step of digestion
- Occurs along the digestive tract
12
Q
Describe absorption (3)
A
- The third step of digestion
- When food is broken into smaller molecules
- It is here, where energy from food is ready to be used by the body
13
Q
Describe elimination/egestion (3)
A
- Fourth and final step of digestion
- Undigested food is eliminated from the body as faeces
14
Q
Oral cavity (2)
A
- The beginning of the digestive system
- The site of ingestion
15
Q
Salivary glands
A
Glands that produce and release saliva