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33 Cards in this Set
- Front
- Back
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Energy available to do work is |
Free energy |
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Delta G is the |
Change in free energy of the reaction |
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As the reaction proceeds to equilibrium delta G approaches ______________. |
Zero |
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Delta G predicts _________________________________. |
whether a reaction is favorable. |
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Is Negative Delta G exothermic or endothermic? |
Exothermic |
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Gproducts - Greactants = |
Delta G of reaction |
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When reactants are in equilibrium DeltaG = |
Zero |
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Is positive deltaG exothermic or endothermic? |
endothermic |
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Negative deltaG is energy _______________. |
Releasing |
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Positive deltaG is energy _________________. |
Requiring |
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When a reaction goes from A to B and has a net loss of energy it is energy _______________. |
Releasing |
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When a reaction goes from B to A and has a net gain of energy its energy __________________. |
Requiring |
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Reactions that have a large +deltaG are made possible by |
coupling with a second spontaneous reaction with a larger -deltaG |
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A combination of an endothermic and exothermic reaction is a ________________. |
Coupling reaction |
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Reactants ---> Products = |
deltaG0 |
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Glucose + ATP ---> Glucose 6 phosphate + ADP= |
-4.0 kcal/mol |
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Glucose 6 Phosphate --> Fructose 6 Phosphate = |
+0.4 kcal/mol |
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Glucose + ATP --> Fructose 6 Phosphate + ADP= |
-3.6 kcal/mol |
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Name 3 energy nucleotides similar to ATP |
UTP, GTP and CTP |
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UTP, GTP and CTP are interconvetable (True/False) |
True |
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What enzyme is used to form UTP from UDP? |
Diphosphokinase |
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ATP + UDP ---> |
UTP + ADP |
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UTP, GTP and CTP all have different energy values (True/False) |
False |
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An important enzyme in cellular energy balance is |
Adenylate Kinase |
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Adenylate Kinase is a |
nucleoside monophosphate kinase |
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In Adenylate Kinase, ATP is regenerated under conditions in which what is required? |
ATP utilization |
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ADP + ADP ---> |
AMP + ATP |
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SHEP's are |
Super high energy phosphates |
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1,3 bisphosphoglycerate has a deltaG0 of ________ |
11,800 |
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Phosphocreatine (Creatine-P) has a deltaG0 of ________. |
10,300 |
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PEP has a deltaG0 of ________ |
14,800 |
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The transfer of phosphate groups from ATP to another molecule is done by |
cleaved phosphates from ATP |
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ATP can be synthesized by the transfer of |
Phosphate from a SHEP to ADP, forming ATP - PEP ---> Pyruvate |
