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15 Cards in this Set
- Front
- Back
___________ are highly selective permeability barriers that serve a variety of cellular functions. |
Biomembranes |
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The Features of Biomembranes include a _________ and _________ distribution of __________, __________, and __________ components. |
1) Fluid Lipid Bilayer 2) Assymmetric 3) Lipid 4) Protein 5) Carbohydrate |
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The Features of Biomembranes include a Fluid Lipid Bilayer and asymmetric distribution of lipid, protein, and carbohydrate components. Proportions of these components are __________. |
Variable |
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________ is important for the the function of the biomembrane. |
Membrane Fluidity |
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Membrane Fluidity is DEPENDENT on several factors including _______ and ________ of _________ of _________, _________, and _________. |
1) Length 2) Degree of Unsaturation of Fatty Acyl Chains 3) Temperature 4) Cholesterol |
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Membrane Fluidity is ________ on several factors including length and degree of saturation of fatty acyl chains, temperature, and cholesterol. |
Dependent |
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Membrane Lipids have a number of other important ___________ and ___________ functions. |
Physiological & Cellular |
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Proteins can be associated with ________ in a variety of ways. |
Membranes |
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__________ proteins are weakly associated. |
Peripheral proteins |
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__________proteins are deeply embedded - often traversing the membrane. |
Integral Membrane Proteins |
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Peripheral proteins are _________ associated, while Integral Membrane proteins are __________ embedded - often __________ the membrane. |
1) Weakly 2) Deeply 3) Traversing |
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Themembrane-spanning domains of integral membrane proteins can be predicted basedon __________ by using a ___________ plot. |
1) Amino Acid Sequence 2) Hydropathy |
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Cells can confine ________ and _______ tospecific domains within a membrane. |
1) Proteins 2) Lipids |
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__________ are areas of the plasma membrane that have a HIGH content of cholesteroland sphingolipidsand appear to serve as a staging area or scaffold for signaling molecules. |
Lipid Rafts |
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Lipid Rafts are areas of the plasma membrane that have a _______ content of ________ and _______ and appear to serve as a _______ area or ________ for ________ molecules. |
1) High 2) Cholesterol & Sphingolipids 3) Staging 4) Scaffold 5) Signaling |