Digestive System Flashcards
1
Q
Stages of Digestion
A
Ingestion
Digestion
Absorption
Elimination
2
Q
Ingestion
A
Taking in/Eating food
3
Q
Digestion
A
The chemical and physical processes of breaking down of the food into molecules small enough for absorption
4
Q
Absorption
A
Transporting the products of digestion from the digestive tract to the circulatory system to be distributed to the rest of the body
5
Q
Elimination
A
Removal of undigested solid waste matter from the body
6
Q
Mechanical Digestion
A
- Physical break down of food(ie. solid food being shredded, torn, ground, shaken)
- Increases surface area for absorption
- Occurs in Mouth, Stomach and Small Intestine(segmentation)
7
Q
Chemical Digestion
A
- The chemical break down of food by enzymes
- Occurs in mouth, stomach and small intestine
8
Q
Hydrolysis
A
- Process of chemical digestion
- Water molecules are added to the macromolecules breaking the chemical bonds turning the polymers into monomers
9
Q
Enzymes
A
- A catalyst to speed up the rate of specific chemical reactions
- Secreted by cells in the digestive tract to breakdown chemical bonds
10
Q
Carbohydrase
A
- An enzyme that breaks down carbohydrates into simple sugars
11
Q
Lipase
A
- An enzyme that breaks down lipids into fatty acids
12
Q
Protease
A
- An enzyme that breaks down proteins into amino acids
13
Q
Digestion Tract Organs
A
- Oral Cavity
- Esophagus
- Stomach
- Small Intestine
- Large Intestine
- Rectum
- Anus
14
Q
Accessory Organs
A
Salivary Glands
Liver
Gall Bladder
Pancreas
15
Q
Esophageal Sphincter
A
- Entrance to the stomach
- a ring of muscle where the esophagus meets the stomach
- Prevents reflux of food and acid
