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Potatoes contain a large quantity of carbohydrates.
Biology - Healthy Diet (AQA)
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.
1 .
Which of the following is essential to a balanced diet?
Carbonates
Hydrocarbates
Carbohydrates
Hydrates
A nice easy question to start with! Carbohydrates include sugars and starch
2 .
Which of the following four food items is the best source of vitamin C?
Citrus fruit
Potatoes
Meat
Fresh garden peas
A lack of vitamin C in the diet leads to a painful and potentially deadly disease - scurvy. Sailors on long sea voyages used to develop scurvy until it was discovered that eating citrus fruit prevented it. British naval sailors were called 'limeys' because British naval ships of the 19th century always carried a large stock of limes
3 .
Which of the following foods contains carbohydrates?
Bread
Potato
Pasta
All of the above
Carbohydrates are the primary souce of energy for your body
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
As well as deficiency diseases caused by not eating enough vitamins and minerals, weighing too little can contribute to a weakened immune system, fragile bones and feeling tired
5 .
Which of the following health problems is not related to eating too many calories?
Heart disease
Rickets
Strokes
Diabetes
Rickets is a bone disease linked to a lack of vitamin D and the mineral ion calcium
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
LDL's take cholesterol from the liver to the cells of your body. Cholesterol is used by your body to make hormones, vitamin D, bile acids and in the creation and maintenance of your cell membranes. Although LDL's are not in fact cholesterol, they are often referred to as 'bad cholesterol" as it can be deposited on the inside of your arteries, restricting the blood flow and causing blood clots
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
The cholesterol level in your body can be affected by the genes you inherit from your parents and the amount of cholesterol in your diet
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
Having a high cholesterol level can lead to heart disease but cholesterol carried by HDL's is often referred to as 'good' cholesterol as it can remove the deposits of LDL cholesterol that clog up your arteries
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
When the body releases energy mainly from stored fats, it produces chemicals that are called ketones. These are excreted through the lungs, making the breath smell strange and can also cause headaches
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
It is designed to teach the dieter how to change to eating more healthily
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