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Question
The citric acid cycle operates only under aerobic conditions becauseA) oxygen is a reactant in the citric acid cycle.
B) oxygen is a product of the citric acid cycle.
C) CO2 is a product of the citric acid cycle.
D) the NADH and FADH2 produced by the citric acid cycle can only be reoxidized by the electron transport chain.
E) the NAD+ and FAD produced by the citric acid cycle can only be reduced by the electron transport chain.
Answer
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Related questions
Q:
Identify the Brnsted-Lowry acids in the following reaction.H2O + CO32- ->HCO3- + OH-A) H2O/HCO3-B) CO32-/HCO3-C) OH-/HCO3-D) CO32-/OH-E) H2CO3/H2O
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According to the Brnsted-Lowry definition,
A) an acid is a proton acceptor.
B) a base produces H+ ions in aqueous solutions.
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E) an acid acts as the solvent.
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A catalyst lowers the activation energy of a chemical reaction.
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Q:
In an exothermic reaction, heat can be considered a
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B) product.
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In the reaction of nitrogen gas with oxygen gas to produce nitrogen oxide, what is the effect of adding more oxygen gas to the initial reaction mixture? The reaction is shown below.N2(g) + O2(g) -> 2NO(g)A) The equilibrium shifts to produce more N2.B) The equilibrium shifts to produce more NO.C) The equilibrium is not affected.D) Extra catalyst is required to reach equilibrium.E) The temperature of the reaction mixture is raised.
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B) regulation.
C) metabolism.
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E) catalysis.
Q:
When a reaction is at equilibrium,
A) all reaction stops.
B) no more reactants are converted to products.
C) the reaction is no longer reversible.
D) the forward and reverse reactions occur at the same rate.
E) the products and reactants have the same energy content.
Q:
A chemical reaction has reached equilibrium when
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B) all reactants have been converted to products.
C) all products have been removed from the reaction mixture.
D) the catalyst has been used up.
E) the rate of the forward reaction equals the rate of the reverse reaction.
Q:
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Methanol, CH3OH, can be classified as a ________.
A) gas
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D) strong electrolyte
E) nonelectrolyte
Q:
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Q:
0.50 mole of KCl is added to 2.0 kg of water. The boiling point of the solution will be ________ the boiling point of pure water.
A) higher than
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B) starch outside
C) albumin inside and outside
D) water inside only
E) starch inside and outside
Q:
Which solution is isotonic to a red blood cell?
A) water
B) 0.5% NaCl
C) 2% glucose
D) 0.9% NaCl
E) 10% glucose
Q:
During the process of diluting a solution to a lower concentration,
A) the amount of solute does not change.
B) the amount of solvent does not change.
C) there is more solute in the concentrated solution.
D) the volume of the solution does not change.
E) water is removed from the concentrated solution.
Q:
What volume of a 1.5 M KOH solution is needed to provide 3.0 moles of KOH?
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Q:
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Q:
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B) increases the solubility of a gas in the solution.
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Q:
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B) the Cl- ions are attracted to the partially negative oxygen atoms of the water molecule.
C) the K+ ions are attracted to Cl- ions on the KCl crystal.
D) the K+ ions are attracted to the partially negative oxygen atoms of the water molecule.
E) the K+ ions are attracted to the partially positive hydrogen atoms of the water molecule.
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STP stands for 25 C and 760 mmHg.