Digestive System Flashcards
1
Q
Digestion
A
Breakdown of large insoluble molecules into smaller soluble molecules.
2
Q
Bile
A
- Made in liver
- Stored in gallbladder
- Released into small intestine
3
Q
Bile role
A
- Neutrilises acid
- Emusifies large fat droplets into small ones, increasing surface area
4
Q
How is the small intestine adapted for its function?
A
- Lots of capillaries
- Thin wall - short diffusion distance
- Large surface area, provided by villi
- Lacteals - absorption of fats
5
Q
What happens in large intestine?
A
Water is reabsorbed into the blood
6
Q
Egestion
A
Removal of feaces from the anus
7
Q
Excretion
A
Removal of metabolic waste
8
Q
Ingestion
A
Taking in of food into the body
9
Q
Metabolism
A
Rate at which chemical reactions take place
10
Q
Assimilation
A
Build up of large molecules from small ones
