Human Nutrition (Summary Of Digestion)

Question 1

Where is amylase first made in the digestive system?

Answer 1

Salivary glands

Question 2

What substance is made in salivary glands?

Answer 2

Amylase

Question 3

Where is amylase active?

Answer 3

Mouth

Question 4

What substance is active in the mouth?

Answer 4

Amylase

Question 5

What substrate does amylase act on?

Answer 5

Starch

Question 6

What substance acts on starch?

Answer 6

Amylase

Question 7

What product is made when amylase acts on starch?

Answer 7

Maltose

Question 8

What is the preferred pH of amylase?

Answer 8

7 to 9

Question 9

What substances are made in the stomach lining?

Answer 9

Pepsin

Hydrochloric acid

Question 10

Where are the substances pepsin and hydrochloric acid made?

Answer 10

The stomach lining

Question 11

Where are pepsin and hydrochloric acid active?

Answer 11

The stomach

Question 12

What substances are active in the stomach?

Answer 12

Pepsin

Hydrochloric acid

Question 13

What substrate does pepsin act on?

Answer 13

Protein

Question 14

What enzyme acts on protein?

Answer 14

Pepsin

Question 15

What product is formed when pepsin acts on protein?

Answer 15

Peptides

Question 16

What pH does pepsin prefer?

Answer 16

2

Question 17

What does hydrochloric acid act on?

Answer 17

Bacteria and fibrous foods

Question 18

What acts on bacteria and fibrous foods?

Answer 18

Hydrochloric acid

Question 19

What is formed when hydrochloric acid acts on bacteria and fibrous foods?

Answer 19

Dead bacteria and softened food

Question 20

What pH is hydrochloric acid?

Answer 20

pH 2

Question 21

What substances are made in the pancreas?

Answer 21

Sodium hydrogen carbonate
Amylase
Lipase

Question 22

Where are sodium hydrogen carbonate, amylase and lipase made?

Answer 22

The pancreas

Question 23

What substances are active in the duodenum?

Answer 23

Sodium hydrogen carbonate (pancreas/liver)
Amylase
Lipase
Bile salts

Question 24

What substance acts on the acidic chyme?

Answer 24

sodium hydrogen carbonate

Question 25

What does sodium hydrogen carbonate act on?

Answer 25

Acid

Question 26

What is formed when sodium hydrogen carbonate acts on acid?

Answer 26

Acid is neutralised | Neutralisation reaction - forms salt and water

Question 27

What is the preferred pH of sodium hydrogen carbonate?

Answer 27

7 to 9

Question 28

Where is the second amylase produced in the digestive system and lipase made?

Answer 28

In the pancreas

Question 29

What does lipase act on?

Answer 29

Lipids

Question 30

What substances acts on lipids?

Answer 30

Lipase and bile salts

Question 31

What product is formed when lipase acts on lipids?

Answer 31

Fatty acids and glycerol

Question 32

What pH does lipase prefer?

Answer 32

7 to 9

Question 33

What substances are made in the liver? | 2

Answer 33

Bile salts | Sodium hydrogen carbonate

Question 34

What is produced when bile salts act on lipids?

Answer 34

Lipid droplets

Question 35

What pH do bile salts prefer?

Answer 35

They don't have a preferred pH