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25 Cards in this Set
- Front
- Back
If G of the reaction AB is -40 kj/mol under standard conditions the reaction the reaction will proceed spontaneously from left to right |
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If the reaction A+B C has a G of -29 kj/mol at 25 degrees Celsius starting under standard conditions one can predict at equilibrium the concentration of C will be greater than the concentration of A or B
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All of the following contribute to the large negative free energy change upon hydrolysis of “high energy” compounds except Low activation energy of forward reaction (FALSE)
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The hydrolysis of ATP has a large negative G^10 ; neverless ATP is stable in solution due to the hydrolysis reaction having a large activation energy
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a
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The conversion of 1 mol of fructose1,6 biphosphate to 2 mol of pyruvate by glycolysis pathway results in a net formation of 2 mol of NADH and 4 mol of ATP
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a
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When a muscle is stimulated to contract aerobically, less lactic acid is formed than when it contacts anerobically because under aerobic conditions most of the pyruvate generated as a result if glycolysis is oxidized by the citric acid cycle rather than reduced to lactate
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Cofactor that participates directly in most of the oxidation-reduction reactions in the fermentation of glucose to lactate is NAD+/NADH
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a
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The steps of glycolysis between Glyceraldehyde 3-phosphate and 3-phosphoglycerate includes all the following except Oxidation of NADH to NADH+ (FALSE)
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In comparison with the resting rate, actively contracting human muscle tissue has a higher rate of lactate formation
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a
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Fluidity of lipid bilayer increases with increasing temperature
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In facilitated diffusion across membrane a specific membrane protein decreases activation energy for movement of solute through membrane
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a
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Specificity of potassium channel for K+ over Na+ is because differential interaction with selectively filter protein
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a
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Receptor enzymes contain enzyme activity that acts up cytosolic substrate
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a
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Serpentine receptors have multiple membrane spanning helical domains
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a
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Beta adrenergic have cyclic AMP synthesis, GDP replacement via GTP, cAMP dependant PKA, NOT increases Ca2+ concentration
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a
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Exergonic reaction goes forward so product concentration is greater than reactant concentration at equilibrium
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a
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Large negative free energy change contribute electrostatic repulsion in the reactant, stabilization of products by extra resonance, and ionization, NOT low activation energy of forward reaction
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a
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Tautomerization contributes most to hydrolysis of PEP are destabilization of reaction by electrostatic repulsion and stabilization of product via tautomerization
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a
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Glycolysis is catabolic
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a
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Reoxidation of NADH pyruvatelactate
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a
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Glycolysis is not endergonic
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a
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Glucoselactate needs NAD+/NADH
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a
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Acetate cannot start synthesis of glucose via glucogenesis in mammals n
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a
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The concentration of 2phosphoglycerate increases following interation of fluoride with enolase
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In seed germination glyoxlate pathway is important because lets seed carry out net synthesis of glucose from acetyl CoA
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a |