Term
| ATP, NADPH, NADH are examples of which metabolic pathway? |
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Definition
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Term
| ADP, NAD, NADP are examples of which metabolic pathway? |
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Definition
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Term
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Definition
| energy released or absorbed by the reactant and product molecules as a result of changes in electronic bonding during a chemical reaction |
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Term
| a negative enthalpy means what? |
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Definition
| heat releasing reaction (exothermic) or (exergonic) |
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Term
| a positive enthalpy means what? |
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Definition
| products have a higher chemical bond energy than the reactans. |
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Term
| what role does oxygenation play on the amount of energy released when it oxidizes? |
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Definition
| the more oxygenated a compound already is, the smaller the amount of energy is released. |
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Term
| What is the relationship between FA's and sugars in regards to oxidation? |
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Definition
| fa's contain little oxygen, so they release more energy compared to sugars |
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Term
| what is the isotherm equation? |
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Definition
delta G + RT ln [P][Q]/[A][B]
-RT ln Keq |
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Term
| what is the relationship between equilibrium constants and free energy? |
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Definition
| as the keq increases, delta g decreases |
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Term
what direction will the reaction go in the presence of a negative delta g?
what does that mean about the keq? |
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Definition
the reaction will proceed in the forward direction.
the keq is positive |
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Term
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Definition
| reverse direction. keq is negative |
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Term
| how do you determine the delta g of multiple reactions |
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Definition
| the summation of all the delta g's involved |
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Term
| when can the reactions for the standard free energy change be additive? |
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Definition
| when the are sequential (common denominator) |
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Term
| what is the actual change in free energy dependent on? |
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Definition
| dependent on the actual state of ATP and its concentrations, along with pH |
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Term
| the energy in the phosphate bonds of ATP may be transferred to other nucleotides by? |
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Definition
| nuclear diphosphates or monophosphates |
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Term
| What are the chemical basis for the free energy change associated w/ATP hydrolysis. |
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Definition
Relief of charge repulsion
stabilization of inorganic phosphate by resonance
ionization of diphosphate
increase solvation of products by water |
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Term
| what type of process is ATP hydrolysis |
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Definition
| two step process in which an enzyme intermediate forms |
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Term
| the measure of the quantity of work can be estimated by? |
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Definition
| elctron motive force (emf) |
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Term
| in terms of reduction and oxidation, how is catabolism? |
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Definition
substrate is reduced
product is oxidized |
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Term
| in terms of reduction and oxidation, how is anabolism? |
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Definition
product reduced
substrate oxidized |
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Term
| what is the common mechanism to oxidize an alkane? |
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Definition
oxidation is analagous w/dehydrogenation
FAD, NAD used to take hydrogens |
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