B2

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  • Created by: hope
  • Created on: 11-05-14 16:16
What is homoeostasis?
Balancing inputs with outputs to maintain a constant internal environment
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Name three ways antibodies help get rid of infection
Agglutination of particulate matter, Coating over bacteria and Neutralisation of toxins released by bacteria
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What is the role of the immune system?
To deal with any infections in the micro-organisms that enter the body
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Why must you complete a full course of antibiotics before you feel better?
If you don't, it can increase the risk of antibiotic resistant emerging
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What is an antimicrobial?
Antimicrobials are chemicals that inhibit the growth of micro-organisms or kill them, without damaging your own body cells
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What is a placebo?
'Fake' treatments which don't involve giving the drug to the patient
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How is the structure of an artery adapted to its function?
Its more thicker and stronger than a vein so it won't burst
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How is a vein adapted to it function?
The blood is at a lower pressure in the veins so the walls don't need to be as thick
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How is the structure of a capillary adapted to its function?
Their walls are only one cell thick. This increases the rate of diffusion
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Why does bacteria reproduce rapidly inside the human body?
The bacteria makea copies of themselves
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Which gland releases ADH?
Pituitary Gland
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Why aren't vaccines risk free for everyone?
Their body may not be immune to the drug
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Why am I immune to most diseases I've already had?
Because my body has produced antibodies
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Name 2 ways drugs are tested before they're given to humans
Tested on human cells and on mammals
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Why are drugs tested on healthy people first not ill people?
To make sure it has no harmful side effects and so that the drug doesn't do more damage
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What is a Blind Trial?
When the patient doesn't know if they've been given the drug or a placebo
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What is a Double-Blind Trial?
Scientists don't know who got the real drug/placebo, neither does the patient
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What is an Open-Label Trial?
Where both patient and scientist know of treatments that have been used. You cannot mask the treatments being tested
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Lifestyle factors that effect the risk of heart disease
Smoking, Stress, Poor Diet, Alcohol, Illegal Drug Use
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How is water gained into the body? (Inputs)
Drinks, Food and Respiration
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How is water lost from the body? (Outputs)
Sweating, Breathing and Faeces
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What is the role of the immune system?
To deal with any infectious micro-organisms that enter the body. An immune response involves white blood cells
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Jobs of the white blood cell
Anything that enters the body should be picked up by a certain white blood cell and these white blood cells should detect anything foreign in the body. Then, they engulf and digest them and these white blood cells are non-specific
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What do bacteria need to reproduce?
Nutrients for energy, and they need warm, moist conditions so chemical reactions can take place
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What can symptoms be caused by?
Cell Damage or Toxins
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What do vaccinations use?
Safe versions of dangerous micro-organisms
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Other cards in this set

Card 2

Front

Name three ways antibodies help get rid of infection

Back

Agglutination of particulate matter, Coating over bacteria and Neutralisation of toxins released by bacteria

Card 3

Front

What is the role of the immune system?

Back

Preview of the front of card 3

Card 4

Front

Why must you complete a full course of antibiotics before you feel better?

Back

Preview of the front of card 4

Card 5

Front

What is an antimicrobial?

Back

Preview of the front of card 5
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