In GCSE Science students will be taught the requirements for keeping healthy. This is the first of six quizzes on that topic and it looks in particular at which foods make up a healthy balanced diet, the different groups of food - carbohydrates, proteins and fats - as well as vitamins, minerals and fibre, and in which foods they can be found. It also looks at why we need the different food groups in our diet and the effects of malnutrition and overeating as well as the necessity of regular exercise.
A combination of a balanced diet and regular exercise is needed to help keep the body healthy. A balanced diet involves eating the right types of nutrients in the right proportions. You may see claims made that fast food is in fact healthy. Yes, the fast food companies do include the main nutrients - carbohydrates, proteins, fats, vitamins, mineral ions, fibre and a drink, but these are in the wrong proportions to be healthy when eaten regularly. There is usually a lot more fat and salt than is required by your body and very little fibre.
[readmore]
Your body uses the nutrients you eat for releasing energy that enables you to live and also as the raw materials for repairs and growth. Energy is most easily released from carbohydrates but it can also be obtained from stored fat. The proteins are digested to supply your body with amino acids. These can then be delivered to the cells of your body by your bloodstream where they can be rebuilt as necessary to form the proteins of your body.
Eating more calories than you use during the day has one effect - you put on weight. This can then lead to a lot of health problems later in life including heart disease and diabetes. High levels of the sodium ion from salt increases blood pressure which means you have an increased risk of heart disease and strokes.
Regular exercise improves your health in many ways. It burns more calories than if you didn't exercise and helps you to control your weight more easily. Exercise improves your circulation which can reduce your risk of heart disease and strokes. It makes you stronger and fitter so you will be less tired during the day and it can also improve your mood since it stimulates the release of certain chemicals in the brain that are associated with relaxation and happiness.
[/readmore]
1.
|
Which of the following is essential to a balanced diet? |
|
[ ] |
Carbonates |
[ ] |
Hydrocarbates |
[ ] |
Carbohydrates |
[ ] |
Hydrates |
|
|
2.
|
Which of the following four food items is the best source of vitamin C? |
|
[ ] |
Citrus fruit |
[ ] |
Potatoes |
[ ] |
Meat |
[ ] |
Fresh garden peas |
|
|
3.
|
Which of the following foods contains carbohydrates? |
|
[ ] |
Bread |
[ ] |
Potato |
[ ] |
Pasta |
[ ] |
All of the above |
|
|
4.
|
Under-eating is as bad for your health as overeating. Why is this? |
|
[ ] |
Because if you under-eat you may not get sufficient vitamins and minerals |
[ ] |
Because if you under-eat you are always hungry |
[ ] |
Because if you under-eat you look thin |
[ ] |
Because if you under-eat you get too much protein |
|
|
5.
|
Which of the following health problems is not related to eating too many calories? |
|
[ ] |
Heart disease |
[ ] |
Rickets |
[ ] |
Strokes |
[ ] |
Diabetes |
|
|
6.
|
What are low density lipoproteins (LDL's)? |
|
[ ] |
'Good' cholesterol |
[ ] |
Fat that is stored in the body |
[ ] |
Chemicals that carry carbohydrates in the bloodstream |
[ ] |
Chemicals that carry cholesterol in the bloodstream |
|
|
7.
|
The level of cholesterol in your body is determined by what? |
|
[ ] |
Only what you eat |
[ ] |
Only what you drink |
[ ] |
Only genetic inheritance |
[ ] |
Both genetic and dietary factors |
|
|
8.
|
Which is the best for your heart? |
|
[ ] |
A high proportion of HDL cholesterol compared to LDL cholesterol |
[ ] |
Equal amounts of HDL cholesterol compared to LDL cholesterol |
[ ] |
A low proportion of HDL cholesterol compared to LDL cholesterol |
[ ] |
No cholesterol of any type |
|
|
9.
|
Some people follow special diets to reduce their weight. One of these is called the Atkins diet which is very low in carbohydrates. This forces the body to do what? |
|
[ ] |
To lose weight by burning its stores of fat |
[ ] |
To lose weight by reducing the amount of protein eaten |
[ ] |
To lose weight by increasing the number of calories eaten |
[ ] |
To lose weight by not digesting food properly |
|
|
10.
|
The Weight Watchers diet gives points values for all of the food eaten. It does not limit what can be eaten but requires the person to stay to their points limit. Which of the following statements best describes this diet? |
|
[ ] |
The diet causes weight loss by increasing the amount of vitamins and minerals eaten |
[ ] |
The diet causes weight loss by increasing the amount of protein eaten |
[ ] |
The diet causes weight loss by artificially increasing metabolic rate |
[ ] |
The diet causes weight loss whilst eating a balanced diet |
|
|
1.
|
Which of the following is essential to a balanced diet? |
|
[ ] |
Carbonates |
[ ] |
Hydrocarbates |
[x] |
Carbohydrates |
[ ] |
Hydrates |
|
|
2.
|
Which of the following four food items is the best source of vitamin C? |
|
[x] |
Citrus fruit |
[ ] |
Potatoes |
[ ] |
Meat |
[ ] |
Fresh garden peas |
|
|
3.
|
Which of the following foods contains carbohydrates? |
|
[ ] |
Bread |
[ ] |
Potato |
[ ] |
Pasta |
[x] |
All of the above |
|
|
4.
|
Under-eating is as bad for your health as overeating. Why is this? |
|
[x] |
Because if you under-eat you may not get sufficient vitamins and minerals |
[ ] |
Because if you under-eat you are always hungry |
[ ] |
Because if you under-eat you look thin |
[ ] |
Because if you under-eat you get too much protein |
|
|
5.
|
Which of the following health problems is not related to eating too many calories? |
|
[ ] |
Heart disease |
[x] |
Rickets |
[ ] |
Strokes |
[ ] |
Diabetes |
|
|
6.
|
What are low density lipoproteins (LDL's)? |
|
[ ] |
'Good' cholesterol |
[ ] |
Fat that is stored in the body |
[ ] |
Chemicals that carry carbohydrates in the bloodstream |
[x] |
Chemicals that carry cholesterol in the bloodstream |
|
|
7.
|
The level of cholesterol in your body is determined by what? |
|
[ ] |
Only what you eat |
[ ] |
Only what you drink |
[ ] |
Only genetic inheritance |
[x] |
Both genetic and dietary factors |
|
|
8.
|
Which is the best for your heart? |
|
[x] |
A high proportion of HDL cholesterol compared to LDL cholesterol |
[ ] |
Equal amounts of HDL cholesterol compared to LDL cholesterol |
[ ] |
A low proportion of HDL cholesterol compared to LDL cholesterol |
[ ] |
No cholesterol of any type |
|
|
9.
|
Some people follow special diets to reduce their weight. One of these is called the Atkins diet which is very low in carbohydrates. This forces the body to do what? |
|
[x] |
To lose weight by burning its stores of fat |
[ ] |
To lose weight by reducing the amount of protein eaten |
[ ] |
To lose weight by increasing the number of calories eaten |
[ ] |
To lose weight by not digesting food properly |
|
|
10.
|
The Weight Watchers diet gives points values for all of the food eaten. It does not limit what can be eaten but requires the person to stay to their points limit. Which of the following statements best describes this diet? |
|
[ ] |
The diet causes weight loss by increasing the amount of vitamins and minerals eaten |
[ ] |
The diet causes weight loss by increasing the amount of protein eaten |
[ ] |
The diet causes weight loss by artificially increasing metabolic rate |
[x] |
The diet causes weight loss whilst eating a balanced diet |
|
|