What is the name of the enzyme that breaks down starch?
Carbohydrase
Protease
Lipase
What substances are lipids broken down into?
Amino acids
Glycerol and amino acids
Glycerol and fatty acids
Which chemical is used to test for protein?
Iodine
Biuret solution
Benedict’s reagent
What colour is the positive iodine test for starch?
Brown
Brick red
Blue/black
What is the main function of the gall bladder?
To store bile
To make bile
To make enzymes
Which part of the digestive system has the main function of absorbing digested food into the blood?
Stomach
Small intestine
Large intestine
What is the name of the wave-like contractions that push food through the gut?
Emulsification
Digestion
Peristalsis
Why is Visking tubing a good model of the gut?
It is transparent
It is selectively permeable
It is fully permeable
Which nutrient in the diet prevents the disease scurvy?
Vitamin C
Vitamin D
Iron
Eating which of these substances to excess can cause heart disease?
Fat
Salt
Sugar