Biology 1 revision

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What is fitness measured in ?
Stamina,strength,flexibility,speed and agility
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What is good health
Good health is being free from disease
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What can increase the risk of heart disease?
Having high blood pressure, smoking,eating too much saturated fats and salts
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What is systolic blood pressures?
The pressure in the arteries when the heart contracts
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What is diastolic blood pressure ?
The amount of pressure in the arteries when the heart is relaxed
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What can lead to high blood pressure ?
Smoking,stress and being over weight
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How does smoking increase blood pressure ?
They cause the heart to pump blood round quicker putting strain on the heart
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What is thrombosis?
Cholesterol deposit may lead to a blood clot and this could cause a stroke
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What makes up a balanced diet ?
Carbohydrates,fat,protein,iron,fiber,water
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What is the equation for EAR ?
0.6 x body mass in kg
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If your over weight what are the health risk?
Heart disease , arthritis , diabetes and Brest cancer
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What is meant by a balance diet?
It means the right amount of diffrent foods and energy to keep you healthy
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What is a benign tumor ?
A tumor when which doesn't spread round the body
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What is a malignant tumor
A tumor which does spread around the body
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What are the types of pathogens ?
Fungi,bacteria,viruses no Protozoa.
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What are antibiotics
They are chemicals produced by other bacterial or fungi to kill and prevent other bacteria and fungus
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What is the incident of disease ?
The rate at which new cases occur in a population each year
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What is passive immunity?
When a person is injected with antibodies made in a lab
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What is active immunity?
When you make your own antibodies
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What is accommodation?
When humans can focus on near or distant objects but not both at the same time
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What is monocular vision ?
When you have a wider field of view but can't judge distances very well
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What is binocular vision ?
This is when both eyes focus at the same time and can judge distances accurately
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What is an effector ?
These are glands in the muscle that carry out a response
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What is the reflex pathway ?
1) stimulus 2)receptor 3) sensory neurons 4) relent neurone 5)motor neurons 6) effector 7)response
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What are the types of drugs?
Depressants,painkillers,stimulants,performance enhancers and hallucinogens
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What is a blind trial ?
Two groups of volunteers do not know who is received no the placebo or the real drug
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What is a double blind trial ?
Neither the volunteer nor the doctor collecting the data knows which drug is which
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What are the substances found in cigarettes?
Carbon monoxide , tar , particulates and nicotine
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Name some short term effects of alcohol ?
Blurred vision , impaired vision and loss of self control
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Name some long term effects of alcohol ?
Cancer,risk of diabetes and brain damage
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What is negative feedback ?
Negative feedback is a mechanism that keeps things at a steady level
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what is type 1 diabities ?
the persons own immune system destroyed the cells which produced insulin
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what are hormones ?
hormones are chemicals secreted from glands into the bloodstream
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what is type 2 diabities ?
It could be linked to someone being over weight and so cells dont respond to insulin or pancreus might not be making enought insulin
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what is tropism ?
It is a plants response to stimulus
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what is auxins ?
a plant hormone which moves throught the plant
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what is phototropic ?
when the shoots grow towards the light .
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what are characteristics which are determind by enviroment ?
scars and which language you speak
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what characteristics are determind by genes ?
eye colour,earlobe shape and nose shape
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what are gametes ?
gametes are special sex cells which contain only 23 chromosomes
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Other cards in this set

Card 2

Front

What is good health

Back

Good health is being free from disease

Card 3

Front

What can increase the risk of heart disease?

Back

Preview of the front of card 3

Card 4

Front

What is systolic blood pressures?

Back

Preview of the front of card 4

Card 5

Front

What is diastolic blood pressure ?

Back

Preview of the front of card 5
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