Unit 1 - Health, Lifestyle and Diet

Question 1

What food groups do we need in our diet?

Answer 1

Carbohydrates

Fats

Protein

Fibre

Vitamins and Mineral ions

Question 2

What is the carbohydrates use in the body?

Answer 2

To release energy

Question 3

What is the use of fats in the body?

Answer 3

To keep warm and release energy

Question 4

What is the use of protein in the body?

Answer 4

For growth, cell repair and cell replacement

Question 5

What is the use of fibre in the body?

Answer 5

To keep everything moving smoothly through the digestive system

Question 6

What is the use of vitamins and mineral ions in the body?

Answer 6

To keep skin, blood and everything else healthy

Question 7

Why do we need energy?

Answer 7

To fuel the chemical reactions int he body (that keep you alive)

Question 8

What are the chemical reactions in your body called? What is the speed at which they occur?

Answer 8

They’re called your metabolism, the speed at which they occur is your metabolic rate

Question 9

How and why are their variations in the resting metabolic rate?

Answer 9

Muscle needs more energy than fatty tissue, which means (if all else is equal) people with a higher proportion of muscle to fat in their bodies will have a higher metabolic rate

Question 10

Why are physically bigger people more likely to have a higher metabolic rate than smaller people?

Answer 10

Because the bigger you are, the more energy your body needs to be supplied with (becaus you have more cells)

Question 11

Why do men tend to have a slighlty bigger metabolic rate than women?

Answer 11

They’re slightly bigger and have a larger proportion of muscle

→ Other genetic factors may also have some effect

Question 12

What can boost your resting metabolic rate? Why?

Answer 12

Regular excercise - because it builds muscle

Question 13

What happens to your metabolic rate when ypu excercise?

Answer 13

When you excercise you need more energy so your metabolic rate goes up during excercise and stays high for some time after you finish

Question 14

What affects the amount of energy your diet should contain? What does this mean your diet should contain?

Answer 14

Your activity level, therefore if you do little excercise (eg office worker, just lazy) you’re going to need less energy, so less fat and carbohydrate is needed in your diet

Question 15

What is your health affected by? 3 things

Answer 15

Diet - if your malnourished

Not getting enough excercise

Inherited factors

Question 16

What is malnourishment?

Answer 16

When your diet is not balanced

Question 17

What things can lead to obesity?

Answer 17

• By excess carbohydrate/fat in the diet
• Hormonal problems
• Overeating
• Lack of excercise

Question 18

What health problems can obesity lead to?

Answer 18

• Arthiritis
• Type 2 diabetes
• High blood pressure
• Heart disease
• Some kinds of cancer

Question 19

What can too much saturated fat in your diet lead to?

Answer 19

Increase your bood cholesterol level

Question 20

What can eating too much salt cause?

Answer 20

High blood pressure and heart problems

Question 21

What problems can eating too little cause?

Answer 21

The effect of malnutrition vary depending on what foods are missing from the diet.

Common problems are

• Slow growth (in children)
• Fatigue
• Poor resistance to infection
• Irregular period in women

Question 22

Eating too little: What are deficiency diseases caused by?

Answer 22

A lack of vitamins or minerals

eg a lack of Vitamin C can cause scurvy

Question 23

How does excercise effect your body?

Answer 23

It increases the amount of energy used by the body and decreases the amount stored as fat

It also builds muscle so it helps to boost your metabolic rate

→ So people who excercise are less likely to suffer from health problems such as obesity

Question 24

How can some people be fit but not healthy?

Answer 24

You can be physically fit and slim, but malnourished at the same time because your diet isn’t balanced

Question 25

What are some inherited factors than can affect your health?

Answer 25

Some people may inherit factors that affect their metabolic rate

eg some inherited factors cause an underactive thyroid gland, which can lower the metabolic rate and affect their blood cholesterol level

Some people may inherit factors that affect their blood cholestoral level

→ this increases the risk of heart disease

Question 26

LEARN EVALUATING INFORMATION ON FOOD LABELS

Answer 26

!!!!!!!!!!!!!!!!!!!!

Question 27

When given an evaluation of slimming products, what should you look out for?

Answer 27

• Is the report a scientific study, published in a reputable journal?
• Was it written by a qualified person (not connected with the people selling it)?
• Was the sample of people asked/tested large enough to give reputable results?
• Have there been other studies which found similar results?

Question 28

How can you tell if a diet is more of less effective than just eating less and excercising more?

Answer 28

By having a large survey

Question 29

What is the only way diets and slimming products will work?

Answer 29

• Eat less fat or carbohydrate (so that you take in less energy)
• Do more excercise (so that you use more energy)