A Balance Diet (11.3)

Question 1

What is your basal metabolic rate?

Answer 1

The amount of energy you need just to stay alive,awake and comfortably warm .

Question 2

What is the working energy?

Answer 2

The additional energy you need to move around, digest food and exercise.The amount also depends on how active you are.

Question 3

Formula

Answer 3

Total energy=basal metabolic rate +working energy

*measured in kilojoules or kilocalories
1kj=4.18kc

Question 4

What are the 3 factors affecting energy needs?

Answer 4

•your age-need more energy now that when you were little but after the age of 40 your metabolism will slow down and you will need to eat less or you will gain weight

•your sex-males need more energy than females of the same age

•your lifestyle -the more active you are,the more energy you need

Question 5

What can your body use for energy?

Answer 5

Your body can use carbohydrates,fats and proteins for energy.

Question 6

How much energy does 1gram of carbohydrates gives?

Answer 6

1gram of carbohydrates 17.1kj

Question 7

How much energy does 1gram of protein gives you?

Answer 7

1 gram of protein gives 18.2kJ

Question 8

How much energy does 1gram of fat gives?

Answer 8

1 gram of fat gives 38.9kJ

Question 9

Is the extra food excreted?

Answer 9

No ,instead it is stored as fat.

Question 10

What is also changed into fat and stored?

Answer 10

Fat and protein

Question 11

What is also changed into fat and stored?

Answer 11

Fat and protein

Question 12

What causes one to become obese?

Answer 12

If energy in is greater than energy out,the extra food is stored as fat and you’ll gain weight but if too much weight is gain you’ll become obese.

Question 13

What causes your weight to not change ?

Answer 13

If energy in = energy out.

Question 14

What causes one to become anorexic

Answer 14

If energy in is less than energy out ,your body will use up stored body fat for extra energy and you’ll grow slimmer but if too much body fat is use up you’ll become anorexic.

Question 15

What do you need to become healthy?

Answer 15

A balanced diet

Question 16

What is a balanced diet?

Answer 16

A diet that matches your energy needs and gives you the right mixtures of nutrients and fibre

Question 17

What is processed food and why is fresh food better ?

Answer 17

Processed foods are ready to cook meals and it is better because they have no added salt or sugars and are filled vitamins,minerals and fibre.

Question 18

List 5-6 guidelines

Answer 18

•if you have to lift your own body weight ,you shouldn’t require huge amounts of calories

•if you are doing long distance work then you have plenty of starchy carbohydrates-atleast 55% of intake

•no athlete needs to eat fatty foods .fat is made from excess carbohydrates

•by eating a balanced diet you will get enough fat(for long distance/extended time sports) enough carbohydrate(for anaerobic work),enough protein(for repairs and fore vitamins (to keep body healthy)

•eat plenty fresh fruits and vegetables for the vitamins and minerals

•drink plenty of water before,during and after exercise