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Mindmap von joshua6729, aktualisiert more than 1 year ago
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Erstellt von joshua6729
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OCR Gateway GCSE - Biology B1
- Diet and excercise
- Blood pressure can be measured two ways: Systolic and Diastolic in mmHg
- Smoking can being
overweight can affect your
blood pressure making it
higher
- High blood pressure can lead to
strokes and can damage the
kidneys
- Fitness is your ability to do physical
activities compared to health which
is how free of diseases you are
etc...
- Your EAR is used
to calculate how
much protein you
need
- BMI used to determine
whether you are under, over
or average weight
- Blood pressure can be measured two ways: Systolic and Diastolic in mmHg
- Drugs and disease
- Immunisation protects
against certain diseases
by using harmless dead
pathogens
- How much a
drug can harm
you goes in up
class (C-A)
- Depressants and
stimulants affect the
transmissions
crossing synapses.
- Mosquitos are a vector that carry malaria
- Plasmodium is the pathogen that causes Malaria
- Immunisation protects
against certain diseases
by using harmless dead
pathogens
- Homeostatis and plant hormones
- Homeostatis is
maintaining a constant
internal environment
- Vasolidation (widening) and
vasoconstriction (tightnening)
regulate the temperature of the
body
- Plant hormones can be very useful in commercial uses e.g selective weedkiller
- Auxins are involved in Phototropism and geotropism
- Insulin controls levels of sugar within
the body. It converts excess blood
sugar into glucose.
- Homeostatis is
maintaining a constant
internal environment
- The nervous system
- Light rays are refracted
as they pass through
the cornea and lens
- The eye shape
accommodates
by altering the
shape of the lens
- Long sightedness and
short sightedness are
caused by the eyeball or
lens being the wrong
shape
- Monocular vision has
less depth perception
but a greater FOV
- Nerve
impulses
travel along
the axon of a
neurone
- A neurotransmitter
substance differs
across a synapse, so
the nerve impulse
can pass to the next
neurone
- A spinal reflex
involves a
receptor,
sensory relay
and motor
neurons and
an effector.
- Light rays are refracted
as they pass through
the cornea and lens
- Variation and inheritance
- Alleles are different versions of the same gene
- Sex is
determined by the
chromosomes
either XX or XY
- Human body cells have 23 pairs of chromosomes
- Inherited disorders are
caused by faulty alleles
- Dominant alleles are
expressed if present,
recessive alleles are
expressed in the absence of
a dominant allele.
- Most faulty alleles
are recessive
- Alleles are different versions of the same gene
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