B1.3.1

Question 1

What is the metabolic rate

Answer 1

The speed at which chemical reactions in your cells transfer energy from its stores in food.

Question 2

What are carbohydrates

Answer 2

Carbohydrates are polymers. They are made from smaller carbohydrate molecules such as sugars. There are different types of sugars.

Question 3

What are proteins

Answer 3

Proteins are polymers. They are formed from amino acids. There are about 20 different amino acids and the order in which the amino acids are joined determines the protein that is made.

Question 4

What enzymes break down carbohydrates

Answer 4

Carbohydrase enzymes

Question 5

What enzymes break down starch

Answer 5

Amylase enzymes

Question 6

What enzymes break down protein

Answer 6

Protease enzymes

Question 7

What are lipids

Answer 7

Lipids are fats and oils that you eat. They are a good store of energy and some animals use them for insulation and buoyancy. Lipids are made up of three fatty acids and glycerol.

Question 8

What enzyme breaks down lipids

Answer 8

Lipase breaks down lipids into fatty acids and glycerol

Question 9

What happens when food molecules are fully digested

Answer 9

They are absorbed into the blood stream