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12 Cards in this Set
- Front
- Back
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what do both eukaryotes and prokaryotes have in common
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use DNA as their genetic material
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statement: proteins can function as enzymes
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they do not have glycosidic linkages; they are soluble in water
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REMEMBER: glycine is useful because:
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it is small enough to fit into tight corners of protein molecules
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which protein structures are destroyed by denaturation
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secondary, tertiary, quarternary
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what is a pentose
what is a hexose |
5-carbon sugar
6-carbon sugar |
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peripheral membrane proteins do:
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-interact with biological membranes through electrostatic interactions and H-bonding with head groups of lipids
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integral membrane proteins are:
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exposed to the aqueous surroundings of the membrane; bond its hydrophilic end with peripheral membrane
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what forces stabilize the lipid bilayer
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-van der Waals interactions
-electrostatic and H-bonding among polar heads and between them and surrounding water |
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low coincidence of lipid flip-flop preserves
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membrane asymmetry
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what is an antiporter?
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membrane protein that transports two species in opposite directions across the membrane
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statement: hydrophobic molecules can diffuse across a membrane without the need for a transporter-protein
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ya
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what is: the specific transport of a molecule down its concentration gradient via a transporter protein
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facilitated diffusion
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