biology paper2

homeostatis

abilty of organism to regulate internal conditionsw

why is homeostatis important

so enzymes can happen at optimal rates

what needs to be regulated

blood glucose concentration

internal temp

water levels

order of neurone ting

stimulus, receptor sensory neuron,relay neurone

what is the gap in between neurones

synapse

how does the signal pass between gap in neurones

neurotransmitter chemical

what is a motor neurone

a neurone that passes signal for muscles to move

pituitary gland

main gland that sends signals to other glands located in the brain

pancreas

produces insulin and glucagon

thyroid

controls growth metabolism and more

adrenal gland

produces adrenaline

what does insulin do

casuses glucose to move into cells from blood for respiraton

excess glucose

converts into glycogen as energy store

glucagon

converts glycogen into glucose if blood sugar levels are too low

what does fsh dp

hormone from pituitary galnd causes an egg to mature and overies to produce

Oestrogen

causes uterus lining to thicken and removes fsh so no more eggs can mature

Lh

causes an egg to be released towards uterus and can be fertilized