Parts Of Digestive Sytem And There Functions

Question 1

Salivary gland

Answer 1

Produces saliva
lubricate food

Question 2

what does saliva contain?

Answer 2

Salivary amylase which breaks down starch to maltose

Question 3

Oesophagus

Answer 3

20 CM tube
Connects the mouth to the stomach

Question 4

Stomach

Answer 4

Food stays in the stomach for 6 to 8 hours
Produces protein which breaks proteins into amino acids produces hydrochloric acid

Question 5

What does hydrochloric acid do in the stomach?

Answer 5

Creates the optimum pH for the protease enzymes
Kills ingested pathogens

Question 6

Liver

Answer 6

Producers bile

Question 7

What does bile do?

Answer 7

Emulsify the lipids
To increase the surface area for lipase enzymes to work

Question 8

Gallbladder

Answer 8

Stores the bile
Releases bile into the small intestine via the bile duct

Question 9

What three enzymes does the pancreas produce?

Answer 9

Produces
Protease
Carbohydrase
Lipase

Question 10

Where does the pancreas release the enzymes to?

Answer 10

The small intestine/duodenum

Question 11

Small intestine

Answer 11

Wall is folded into many villi to increase the surface area for nutrient absorption

Has Rich blood supply as it has many capillaries within each villa?

Question 12

Large intestine

Answer 12

Area where water and salt are absorbed
Many indigestible fibre and water

Question 13

Anus

Answer 13

Opening of digestive system to remove undigested material