Energy Transfer II: ATP use in Biosynthesis
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20 terms
Terms | Definitions |
|---|---|
 LG | primary role of ATP is to convert a bad __ into a good phosphate-based __ |
| thermodynamics | ATP improves the reaction ________ (product yield) because LG's are part of the products |
| weakening | creating a better LG is linked to ______ a bond |
| energy | weakening a bond requires _____ |
| resonance | ADP is a good LG because the negative charge is spread out by ________ |
| thiol | ______-based LG's are used for formation of oxyester bonds |
| bigger | R2-S^- is a better LG than R2-O^- because it's _____ |
| orbital | SCoA cannot delocalize electrons with a carbonyl, due to poor _____ overlap between large S atom and smaller C atom |
| are not | thioesters and thiol LG's ____ (are / are not) required for ester bond formation |
| degrade | glutaminase is used to _____ glutamine |
| ATP | cells used an ____-based mechanism that avoids water as a product |
| 44.8 | imaginary hydrolysis of 1 mole of ATP supplies __ kJ |
| Keq | if you have too low ___, then concentrations may be too high or low for cell functions |
| ATP | ___ experiences more internal charge repulsions than ADP |
| resonance | bonding in ADP is better stabilized by ________ than bonding in ATP |
| HEI | ___ are molecules whose imaginary hydrolysis is visualized as the energy-producing components in real rxns or a step in a real rxn |
| HEI | two characteristics of ___ 1) Energy from hydrolysis is = or > than hydrolysis of ATP 2) Cells do not synthesize them for final product |
| HEI | two kinds of ___ 1) Enzyme active site bound 2) Free in the cell |
| stronger | the reason Keq for HEI hydrolysis rxns is because the bonding in the hydrolysis products is _____ than bonding in reactants |
| HEI | examples of ___'s 1) Acyl phosphate (Glutamyl phosphate) 2) Thioester (Acetyl CoA) 3) Nucleotide Sugar |
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