Digestion

Question 1

What are the two types of proteases?

Answer 1

Endopeptidase, Exopeptidase

Question 2

Where to endopeptidases cut?

Answer 2

In the middle of the polypeptide

Question 3

Where do exopeptidases cut?

Answer 3

At the terminal ends

Question 4

What is peristalsis?

Answer 4

Rhythmic contractions of the gut

Question 5

What are the ridges in the stomach called?

Answer 5

Rugae

Question 6

What is the function of rugae?

Answer 6

Help with the mechanical breakdown of food

Question 7

Where is the cardiac sphincter found?

Answer 7

At the top of the stomach

Question 8

Where is the pyloric sphincter found?

Answer 8

At the bottom of the sphincter

Question 9

What do goblect cells do?

Answer 9

Secrete mucus to protect the stomach walls from enzymes and acid

Question 10

What released HCl?

Answer 10

The oxyntic cells

Question 11

What does HCl do?

Answer 11

Kills most bacteria
Provided the optimum pH for enzymes
Activates pepsinogen

Question 12

What is the function of rennin?

Answer 12

Curdles milk

Question 13

What is the pH of the stomach?

Answer 13

1-2

Question 14

Where is pepsin found?

Answer 14

In the gastric juice

Question 15

Is pepsin an endo or exo peptidase?

Answer 15

An endopeptidase

Question 16

What releases pepsin as inactive pepsinogen?

Answer 16

The chief cells

Question 17

What organ produces bile?

Answer 17

The liver

Question 18

Where is bile stored?

Answer 18

In the gallbladder

Question 19

What are the two functions of bile?

Answer 19

Emulsifies lipids into small droplets
Aids in neutralising stomach acid

Question 20

What do the exocrine glands in the pancreas secrete?

Answer 20

Pancreatic juice

Question 21

What does pancreatic juice contain?

Answer 21

Endopeptidases, exopeptidases, amylase, lipase

Question 22

Where are Brunner’s Glands found?

Answer 22

In the sub mucosa of the duodenum

Question 23

What do Brunner’s Glands secrete?

Answer 23

Mucus, Alkaline juice

Question 24

What is the inactive form of trypsin?

Answer 24

Trypsinogen

Question 25

What type of enzyme is trypsin?

Answer 25

An endopeptidase

Question 26

What secretes trypsin?

Answer 26

The pancreas

Question 27

What activates trypsinogen into trypsin?

Answer 27

Enterokinase

Question 28

Where are microvilli found?

Answer 28

On the surface of the villi

Question 29

Where are glucose and amino acids absorbed?

Answer 29

Across the epithelium of the villi

Question 30

Where do fatty acids and glycerol diffuse?

Answer 30

Through the epithelium cell and enter the lacteal

Question 31

Where is a lacteal found?

Answer 31

In the centre of the villus

Question 32

What is the function of the muscularis mucosa?

Answer 32

Lets the villi move

Question 33

Where is the muscularis mucosa found?

Answer 33

Under the mucosa

Question 34

What does the colon absorb?

Answer 34

Water