mindmap 22
DESCRIPTION
mind mapsTRANSCRIPT
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Cell MembraneFunctions
Surroundorganellesinside cells
Provideattachment sitesfor enzymes etc.
Partially-permeable
Involved incell signalling
Electric signalscan pass
along them
Controlwhat passesthrough them
Small oruncharged
particles canpass throughphospholipids
Proteinchannels
and transportproteins control
passageof large orchargedparticles
Isolatereactions
insideorganelles
from cytplasm
Substanceproduced by
one cell docksinto a receptorin the plasma
membraneof anotherReceptors
includeglycoproteins
andlipoproteins
E.g. membraneof the axonof a motor-
neuronetransmits
actionpotentials
from the CNSto a muscle
E.g. innermembrane ofa chloroplast
containschlorophyllneeded for
photosynthesis