Digestion

Where is bile produced?

Liver

Where is bile stored?

Gallbladder

What does bile do?

Neutralises hydrochloric stomach acid and emulsifies fats (gives bigger surface area for the enzyme lipase to work on - makes digestion faster)

What is relationship between the bile from the liver and the hydrochloric acid in the stomach?

Hydrochloric acid in the stomach makes the pH too acidic for enzymes in the small intestine. Bile is an alkaline - it neutralises the acids and makes the conditions alkaline. The small intestine enzyme works best in alkaline conditions

What does the stomach do?

-It pummels the food with its muscular walls

-It produces pepsin (protease enzyme)

-It produces hydrochloric acid to kill bacteria and give the right pH for pepsin to work

What does the Pancreas do?

It produces amylase, protease and lipase then releases them into the small intestine

What does the small intestine do?

It contains protease, amylase and lipase to complete digestion. Digested food is absorbed into the blood.

What does the rectum do?

Stores the faeces

What does the large intestine do?

Absorbs excess water from food

What does the gallbladder do?

Stores bile before it's released into the small intestine

What does the live do?

Produces bile

What do the salivary glands do?

They produce amylase in the saliva