Unit 5 Flashcards (11SA)

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What is the definition of pathogen?
A microorganism/microbe that causes (infectious disease)
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What is used to treat bacterial infections/
Antibiotics
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What type of medicine will 'relieve the symptoms'?
Painkillers
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What is known as the 'rate of chemical reactions in the body'?
Metabolism
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Name one method a white blood cell can defend against pathogens
Produce antibodies, antitoxins or engulf pathogens
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What did Semmelweiss suggest Doctors do between patients?
Wash their hands
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What is in a vaccination?
An inactive pathogen
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What cells are stimulated by the vaccination and what do they produce?
White blood cells - produce antibodies
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What must be done to the 'inoculating loop' before you try and transfer microbes (onto your petri dish)?
It must sterilised (by passing through a flame)
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What cells detect stimuli (like light, sound etc)?
Receptors
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Name the order of neurons in a reflex
Sensory neuron, relay neuron, motor neuron.
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What is the gap between neurons called?
A synapse
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Name 2 of the 4 conditions your body needs to keep constant
Water levels, ion levels, temperature and blood sugar/glucose levels.`
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Name 2 of the 3 hormones involved in the menstrual cycle
FSH, LH, Oestrogen
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How long does the menstrual cycle last?
28 days
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What hormone causes the eggs to mature (in the menstrual cycle)?
FSHq
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What hormone causes the eggs to be released (in the menstrual cycle)?
LH
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What hormone in plants helps them grow towards light?
Auxins
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What are drugs tested on before humans?
Animals
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What is an organism (living thing) that can live in extreme conditions?
An extremophile
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What colour objects are good ABSORBERS of infrared radiation?
Black/Matt objects
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What colour objects are good REFLECTED of infrared radiation?
Shiny objects
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What 'C' is type of energy transfer that occurs well in solids?
Conduction
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What 'C' is type of energy transfer where hot air can rise?
Convection
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What is the name for a 'dummy pill' or fake drug in a drugs trial
Placebo
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Name the 3 subatomic particles (parts) of the atom
Proton, neutron, electron
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Are protons positively or negatively charged?
Positively
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What is the chemical name for limestone?
Calcium Carbonate
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What is limestone damaged by?
Acid Rain
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What gas is limewater used to detect?
Carbon Dioxide
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What is a 'molecule containing hydrogen and carbon only'?
A hydrocarbon
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What is released during the combustion (burning) of a hydrocarbon?
Carbon dioxide and water
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Give a use of copper
Wiring, pipes
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Other cards in this set

Card 2

Front

What is used to treat bacterial infections/

Back

Antibiotics

Card 3

Front

What type of medicine will 'relieve the symptoms'?

Back

Preview of the front of card 3

Card 4

Front

What is known as the 'rate of chemical reactions in the body'?

Back

Preview of the front of card 4

Card 5

Front

Name one method a white blood cell can defend against pathogens

Back

Preview of the front of card 5
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