Biology Unit 1

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What is the definition of fitness?
The ability to do physical activity
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What is the definition of health?
Being free from disease cause by bacteria and viruses
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How is blood pressure measured?
In millimeters of mercury (mmHg)
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What is heart disease caused by?
Restricted blood flow to the heart muscle
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What are the two ways that blood pressure is meaused?
Systolic pressure and Diastolic pressure
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What are the correct chemicals you need for a balanced diet?
Fats, Carbohydrates and Proteins
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What do proteins contain?
Amino acids
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what are first-class proteins?
Meats and fish
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What are second -class proteins?
Plants
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Where are fats stored?
They are stored under the skin and around organs
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How can you reduce the risk of lung cancer?
Not smoking
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How can you reduce the risk of skin cancer?
Using suncream
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What do white blood cell produce?
Antibodies
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What are light rays refracted by?
The Cornea and lens
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What causes Red-green colour blindness?
Lack of specialist cells in the retina
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What does the retina do?
It contain light receptors that help you see different colours
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What do nerve impulses pass along?
The Axon
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What is Binocular Vision?
Binocular vision judges distance by comparing two images from each eye, the more different they are the further away the object.
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Name some depressants.
Alcohol, solvents and temazepam.
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Name painkillers.
Paracetomol and asprin
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Name stimulants.
Nicotine, MDMA and caffine
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What increase when drinking alcohol?
The time taken to react which increase the amount of accidents.
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Why does the liver get damaged when drinking alcohol?
It gets damaged because it is breaking down toxic chemicals
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What is the optimum temperature for enzymes?
37 degrees
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What dies insulin do?
It controls the levels of blood sugar
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What is type 1 diabetes?
Caused by the pancreas not producing any insulin so you need an dose of it instead
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What is type 2 diabetes?
Caused by either the body producing to little insulin or the body not reacting to it.
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Other cards in this set

Card 2

Front

What is the definition of health?

Back

Being free from disease cause by bacteria and viruses

Card 3

Front

How is blood pressure measured?

Back

Preview of the front of card 3

Card 4

Front

What is heart disease caused by?

Back

Preview of the front of card 4

Card 5

Front

What are the two ways that blood pressure is meaused?

Back

Preview of the front of card 5
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