Enzyme Kinetics (Reaction Velocities)

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Science, Chemistry, Physics
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University
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Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the equilibrium constant (KEQ) defined as?
The sum of the concentrations of products and reactants
The ratio of the concentration of products to reactants
The product of the concentrations of reactants
The difference between the concentrations of products and reactants
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is Gibbs free energy (Delta G) related to the equilibrium constant (KEQ)?
Delta G is directly proportional to KEQ
Delta G is related to KEQ through a logarithmic function
Delta G is inversely proportional to KEQ
Delta G is equal to the natural log of KEQ
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a positive Delta G indicate about a reaction?
The reaction is spontaneous
The reaction is at equilibrium
The reaction has no activation energy
The reaction is non-spontaneous
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to KEQ when a reaction is reversed?
KEQ becomes negative
KEQ becomes the reciprocal of the original
KEQ doubles
KEQ remains the same
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does reversing a reaction affect Delta G?
Delta G becomes the negative of the original
Delta G remains unchanged
Delta G becomes negative
Delta G becomes positive
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a first-order reaction, the rate depends on:
The concentration of one substrate
The temperature only
The pressure of the system
The concentration of two substrates
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relationship between the rate constant and activation energy?
Rate constant is independent of activation energy
Rate constant is equal to activation energy
Rate constant decreases with higher activation energy
Rate constant increases with higher activation energy
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