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8421877
Cell Membranes
Descripción
A mind-map covering cell membranes and transport within them.
Sin etiquetas
biology
a level biology
a level
cells
cell structure
cell membranes
biology
cells
a level
Mapa Mental por
kit cecilia
, actualizado hace más de 1 año
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Creado por
kit cecilia
hace más de 7 años
20
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0
Resumen del Recurso
Cell Membranes
plasma membranes
fluid mosaic model
proteins move around the mosaic of phospholipids
phospholipids
form a bilayer through which certain substances can pass
carbon dioxide
oxygen
small lipids
hydrophilic head that points out, hydrophobic fatty acid tail that points in
cholesterol binds to the tails
pack closer together
resist effects of temperature change
membrane becomes less fluid and more rigid
intrinsic proteins
channel proteins
allow passive movement of ions and molecules
carrier proteins
change shape to carry specific molecules by passive or active transport
extrinisic proteins
may be attached to carrier proteins
functions as
antigen
enzyme
receptor site for hormone (signalling molecule)
glycocalyx
glycoproteins
form hydrogen bonds with water to add stability
help cells adhere together
cell signalling
act as receptor molecules for binding of hormones/neurotransmitters
insulin receptors in liver or muscle
acetylcholine at nerve synapses
glycolipids
antigens that allow cells to recognise each other as self or non-self
white blood cells
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