Digestive System

Question 1

State four organs of the digestive system

Answer 1

Stomach

Liver

Pancreas

Colon

Question 2

Describe one function of saliva (2 marks)

Answer 2

Contains enzymes to start the breakdown of carbohydrates

Question 3

Explain how vile in the gut are adapted to carry out their function (4 marks)

Answer 3

Increase the surface area to increase absorption of nutrients

Good blood supply to maintain concentration gradient

Question 4

Explain two symptoms of hepatitis infection (4 marks)

Answer 4

High temperature as the body fights the infection

The liver is affected leading to liver failure

Question 5

Explain the effects of coeliac disease on the body (6 marks)

Answer 5

Autoimmune immune damage to the intestine wall

Sensitive to gluten

Villi are flattened which disrupts the absorption of nutrients

It can cause diarrhoea, nausea and vomiting

Combination of iron, b12 and folic acid and defiance