paper 1 gaps Flashcards
how can type 2 diabetes be treated
lifestyle changes
certain injections
regulating carbon hydrate intake
order of substances in kidney
Renal Artery, glomerulus (ultra filtration), bowman’s capsule, proximal convulated tubule (selective re absorption), loop of henlé, Distillated convulated tubule, collecting ducts.
too much water in the body can cause…
lysis
muscle cramps
confusion
seizures
purpose of progesterone
maintains uterus lining
inhibits LH
purpose of FSH
follicle stimulating hormone, matures egg
stimulates oestrogen
purpose of giberellins
breaks seed dormancy
stem elongation
seedless fruit
purpose of auxins in agriculture
control growth, promote root growth, parthenocarpic fruits, selective weed killers
structure of sensory neurone
has receptor cell attached to one side of
has dendron, axon and cell body between both
has myelin sheath
structure of a motor neurone
has dendrites
has cell body
has an axon
cerebrum function
consciousness
memory
language
complex thinking
cerebellum function
controls movement, balance, posture
medulla
control unconscious activity
2 valves in heart called and side they are on
tricuspid bicuspid
( right side of heart / not you) (left side of heart/ not your left)
factors affecting transpiration + explanation
IF THESE WHERE ALL INCREASED THEN…
temperature FASTER DIFFUSION OF WATER VAPOUR
air movement WATER LOTS MORE EASILY
humidity LESS TRANSPIRATION , AS MORE WATER IN AIR
light intensity, MORE EVAPORATION
sperm cell
flagellum (move)
mitochondria (give energy to flagellum)
acrosome ( breaks down when reaches egg)
fat cell
has small layer of cytoplasm over fat reservoir
can expand 1000 times
ciliated cells
in air ways
sweeps away mucus from lungs into throat to be swallowed and dissolved in stomach acid
goblet cells
produce stocky mucus
why is a red blood cell, red
haemoglobin colour
stem cell importance
development , growth and repair
cell differentiation importance
allows organism to become more efficient
