Arranged in a bilayer, Hydrophobic tails in and Hydrophilic heads out, Impermable; provides flexibility; self healing; can fuse to other membranes
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Cholesterol
controls membrane fluidity, the more cholestrol the less fluid and permeable the membrane, keeps membranes stable at normal body temperature and prevents them from bursting open
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Proteins and Glycoproteins
Make up 25% to 75% of a membrane depending upon the cell, Glycoproteins are proteins with carbohydrate chains attached, have different functions depending where they are in the membrane
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Integral (Intrinsic) Proteins
Span the width of the membrane, can be channel or carrier proteins, used to transport molecules through the membrane, work via active transport or facillitated diffusion
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Peripheral proteins
Sit on the edge of the membrane, act as receptors for hormones or neurotransmitters, involved in cell signalling or chemical reactions
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Other cards in this set
Card 2
Front
controls membrane fluidity, the more cholestrol the less fluid and permeable the membrane, keeps membranes stable at normal body temperature and prevents them from bursting open
Back
Cholesterol
Card 3
Front
Make up 25% to 75% of a membrane depending upon the cell, Glycoproteins are proteins with carbohydrate chains attached, have different functions depending where they are in the membrane
Back
Card 4
Front
Span the width of the membrane, can be channel or carrier proteins, used to transport molecules through the membrane, work via active transport or facillitated diffusion
Back
Card 5
Front
Sit on the edge of the membrane, act as receptors for hormones or neurotransmitters, involved in cell signalling or chemical reactions
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