digestive system structure

Question 1

Mouth

Answer 1

The place where food first enters the body and where chewing (mechanical digestion) occurs.

Question 2

oesophagus

Answer 2

Passageway from mouth to stomach. The process of peristalsis begins from this point onwards.

Question 3

Liver

Answer 3

Organ that makes bile and releases bile to be stored in the gallbladder. Bile will be used to emulsify lipids into small globules to be later broken by lipase enzymes into glycerol and fatty acids.

Question 4

Gallbladder

Answer 4

Stores bile to be released into the small intestine.

Question 5

Pancreas

Answer 5

Carbohydrases, proteases and lipase enzymes are secreted from here into small intestine

Question 6

Small intestine (duodenum, jejunum, ileum)

Answer 6

Enzymes from the pancreas break down carbohydrates, proteins and lipids here. Food is also neutralised. Most importantly however, absorption of digested food monomers into the blood takes place here.

Question 7

Large intestine

Answer 7

Water is absorbed into the bloodstream from here

Question 8

Rectum

Answer 8

Faeces is stored here

Question 9

Anus

Answer 9

Faeces is expelled out the body from here in a process called egestion

Question 10

stomach

Answer 10

where hydrochloric acid which kills bacteria by denaturing their enzymes and creates an acidic environment (pH2) for pepsin to work to break up proteins. Food exits here as chyme.