Healthy Living

Question 1

What does the word diet mean in science?

Answer 1

What you eat

Question 2

What are the three main functions of food for the body?

Answer 2

• Energy
• Growth and repair
• Health

Question 3

What are the main food substances shown on a nutrition label?

Answer 3

• Protein
• Carbohydrates
• Fat
• Fibre
• Salt

Question 4

What do the amounts on a nutrition label typically not add up to?

Answer 4

100g

Question 5

What is the rest of the mass on a nutrition label typically composed of?

Answer 5

Water

Question 6

What are the five categories of nutrients?

Answer 6

• Carbohydrates
• Fats
• Proteins
• Minerals
• Vitamins

Question 7

What additional substances do we need in our diet besides nutrients?

Answer 7

• Water
• Fibre

Question 8

What is the role of fibre in our diet?

Answer 8

Helps to keep intestines clean and healthy

Question 9

What is a good source of fibre?

Answer 9

Wholemeal bread

Question 10

What percentage of a person is water?

Answer 10

About 65%

Question 11

What are the functions of water in the body?

Answer 11

• Dissolves substances
• Fills up cells
• Cools the body when sweating

Question 12

What is the first step in the Benedict’s test for carbohydrates?

Answer 12

Add a small amount of Benedict’s solution to the food sample

Question 13

What color change indicates the presence of sugars in the Benedict’s test?

Answer 13

From blue to bright red/orange

Question 14

What is the test for starch?

Answer 14

Add 2 drops of iodine solution to a food sample

Question 15

What color change indicates the presence of starch?

Answer 15

From brownish yellow to blue/black

Question 16

What is the Biuret test used for?

Answer 16

To test for proteins

Question 17

What color change indicates the presence of protein in the Biuret test?

Answer 17

From blue to purple

Question 18

How can you test for fats?

Answer 18

Rub a small dry food sample on white paper

Question 19

What indicates the presence of fat in the fat test?

Answer 19

Leaves a greasy mark

Question 20

What type of carbohydrate is typically present in bread and butter?

Answer 20

Starch

Question 21

What are two sources of starch?

Answer 21

• Bread
• Rice

Question 22

What are two sources of sugar?

Answer 22

• Sweets
• Fruit

Question 23

What do proteins help the body with?

Answer 23

Make new cells and repair the body

Question 24

What foods are rich in protein?

Answer 24

• Meat
• Fish
• Eggs
• Cheese
• Beans
• Milk

Question 25

Why do pregnant or breastfeeding women require more protein?

Answer 25

To provide proteins for the baby

Question 26

What are vitamins and minerals needed for?

Answer 26

To keep our bodies healthy

Question 27

What is a consequence of a lack of vitamin C?

Answer 27

Scurvy

Question 28

What is calcium needed for?

Answer 28

Strong teeth and bones

Question 29

What happens with a lack of iron?

Answer 29

Anaemia

Question 30

What can excessive fat intake lead to?

Answer 30

Certain cancers and heart disease

Question 31

What is the consequence of consuming more energy than used?

Answer 31

Weight gain

Question 32

What term describes individuals who are excessively overweight?

Answer 32

Obese

Question 33

What is Kwashiorkor?

Answer 33

Results from a diet low in protein, characterized by tummy swelling

Question 34

What is Anorexia?

Answer 34

Refusal to eat and general wasting of the body

Question 35

What does diabetes cause in the blood?

Answer 35

High levels of glucose

Question 36

What is insulin?

Answer 36

A chemical made in the pancreas that helps cells take glucose out of the blood

Question 37

What distinguishes type I diabetes from type II diabetes?

Answer 37

Type I cannot make insulin; Type II does not produce enough insulin

Question 38

Who is at risk of developing type II diabetes?

Answer 38

Obese people

Question 39

What are two methods to control diabetes?

Answer 39

* Injecting insulin * Reducing sugary food intake