Food and digestion Yr 8

Question 1

Which nutrient is required for growth and body repair?

Answer 1

protein

Question 2

Which nutrient group is required for energy?

Answer 2

carbohydrates

Question 3

There are two types of carbohydrates - what are they?

Answer 3

starch and sugar

Question 4

Lack of vitamin C in the diet causes - what?

Answer 4

Scurvy - bleeding gums is a symptom

Question 5

Calcium is a mineral. What do you need calcium for?

Answer 5

Strong teeth and bones.

Question 6

Name some foods that contain calcium

Answer 6

Dairy products - cheese, milk, yoghurt, cream

Question 7

Name some foods that contain vitamin C

Answer 7

Citrus fruits (oranges, lemons, grapefruit)

Question 8

Name some foods that are sources of protein

Answer 8

meat, eggs, beans, pulses, cheese, quorn, fish

Question 9

Which enzyme breaks down protein?

Answer 9

protease

Question 10

Which enzyme breaks down fats?

Answer 10

lipase

Question 11

Which enzyme breaks down starch?

Answer 11

Amylase (and other carbohydrases)

Question 12

Protein is a polymer. What are the monomers called?

Answer 12

Amino acids

Question 13

When a lipase breaks down a fat, what is it broken down into?

Answer 13

fatty acids and glycerol

Question 14

Starch is a polymer. What are the monomers called?

Answer 14

Glucose

Question 15

glucose, sucrose and fructose are all

Answer 15

sugars

Question 16

Name some foods that are sources of starch

Answer 16

bread, pasta, rice, potatoes, cereal

Question 17

Where in the body is hydrochloric acid found?

Answer 17

In the stomach

Question 18

Where, in the digestive system, are villi found?

Answer 18

Lining the small intestine

Question 19

What is the role of the large intestine?

Answer 19

To remove excess water from the food passing through and make faeces

Question 20

What is the name of the organ that produces insulin?

Answer 20

The pancreas

Question 21

What is the name of the organ that produces bile?

Answer 21

Liver - stored in gall bladder

Question 22

What is the name of the tube that connects the mouth to the stomach?

Answer 22

oesophagus or gullet

Question 23

Some mechanical digestion goes on in the stomach. What is this?

Answer 23

Food is mixed and churned by movements of the muscular stomach wall.

Question 24

Where are your salivary glands?

Answer 24

In your head, around your mouth

Question 25

Name two units of measurement for energy.

Answer 25

joule (or kilojoule) and calorie (or kilocalorie)