Interactive resources for schools

1.

Which of the following statements refers to diarrhoea but not to vomiting?

• Reverse peristalsis forces food back out of the mouth
• The person affected can lose water and salts very rapidly
• It can be fatal to the very old and the very young
• Little water is reabsorbed in the colon leading to liquid faeces

2.

Gallstones are formed:

• In the liver
• In the gall bladder
• In the bile duct
• In the hepatic artery

3.

Which of the following statements is the best description of the small intestine of someone affected by coeliac disease?

• It is covered with finger-like villi which increase the surface area for the absorption of digested food
• It is smooth with no villi and so has a smaller surface area for the absorption of digested food.
• It is smooth with no villi as a result of a reaction of the cells to gluten. This means it has a smaller surface area for the absorption of digested food.
• It is the site of the absorption of digested food