Enzymes in the Digestive System

Question 1

What are the stages of carbohydrates breakdown

Answer 1

carbo (starch) > disacharides> monosach(simple sugars)

Question 2

What are the stages of protein breakdown

Answer 2

protein > polypeptides > peptides > amino acids

Question 3

What are the stages of lipid breakdown

Answer 3

lipid > fatty acid + glycerol

Question 4

How many enzymes and where is starch broken down

Answer 4

3 types- in mouth and SI

Question 5

Explain the breakdown of starch in mouth

Answer 5

Saliva amylase - (found in saliva made in salivary glands) breaks starch into disaccharides

Question 6

Explain the breakdown of starch in SIntes

Answer 6

• pancreatic amylase (found in pancreatic juice made in pancreas) breaks starch into disaccharides
• intestinal amylase (found in intestinal juice, made in intestine) breaks disacharides into monosacharcides

Question 7

How many enzymes and where is protein broken down

Answer 7

2 types- stomach and small intestine

Question 8

Explain the breakdown of protein in stomach

Answer 8

pepsin (found in gastric juice and made in gastric glands) breaks protein into poly peptides

Question 9

Explain the breakdown of protein in small intesine

Answer 9

• trypsin (found in pancreatic juice) breaks polypeptides into peptides
• peptidase (found in intestinal juice) breaks peptides into amino acids

Question 10

How many enzymes and where is lipids broken down?

Answer 10

2 types, small intestine

Question 11

Explain the breakdown of lipids in the small intestine

Answer 11

-pancreatic lipase (found in pancreatic juice) breaks lipids into fatty acids + glycerol