The first law of thermodynamics states:
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total energy of a system, including its surroundings, remains Changing
72%
total energy of a system, including its surroundings, remains constant
8%
Sup energy of a system, including its surroundings, remains constant
4%
Sup energy of a system, including its surroundings, remains changing
The second law of thermodynamics states
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the total entropy of a system must increase if a process is to occur spontaneousl
8%
total energy of a system, including its surroundings, remains constant
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is the extent of disorder or randomness of the system and becomes maximum as equilibrium
16%
All of the above falls
_____ is the extent of
disorder or randomness of the system and becomes maximum as equilibrium is approached
disorder or randomness of the system and becomes maximum as equilibrium is approached
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9%
△H
5%
△T
60%
△S
25%
△G
If ΔG is negative, the reaction proceeds ______while If ΔG is positive the reaction proceeds _______
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spontaneously with acceptable of free energy, only if free energy can be gained
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only if free energy can be gained,spontaneously with loss of free energy
59%
spontaneously with loss of free energy, only if free energy can be gained
9%
Nonspontaneously with loss of free energy, only if free energy can be gained;
What is the name of the molecule which donates its electrons?
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Oxidant
20%
Reducing agent
34%
Oxidative agent
29%
Standard reduction potential
What is reduction potential ?
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An atom/molecule gains an electron
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Oxidation power of an electron
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The molecule loses an electron
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Oxidation power of an electron
Which of the following act as a storage form of high energy phosphate?
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48%
Phosphagens
7%
Glycerol phosphate
25%
Glucose-6-phosphate
20%
Phosphoenolpyruvate
What is the standard free energy change of ATP?
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36%
Large and positive
16%
Small and positive
33%
Large and negative
15%
Small and negative
heterotrophic organisms obtain free energy by coupling their metabolism to the breakdown of complex organic molecules in their environment
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84%
T
16%
F
The proper sequence of stages in glycolysis is
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cleavage and rearrangement, glucose priming, ATP generation, oxidation
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oxidation, cleavage and rearrangement, ATP generation, glucose priming
42%
glucose priming, oxidation, cleavage and rearrangement, ATP generation
25%
glucose priming, cleavage and rearrangement, oxidation, ATP generation
ATP synthesis by ATP synthase is driven by the movement of
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protons
19%
electrons
18%
NADH
46%
All of the above
ATP is a nucleoside triphosphate containing
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13%
adenine
7%
ribose
30%
three phosphate groups
49%
All of the above
Glycolysis. A net formation of two ~ results from the formation of lactate from one molecule of glucose, generated in two reactions catalyzed by phosphoglycerate kinase and pyruvate kinase, respectively
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78%
T
22%
F
There are three major sources of ~ taking part in energy conservation or energy capture:
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Glycolysis
8%
Oxidative phosphorylation.
14%
The citric acid cycle
69%
All of the above