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15
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Which of the following is NOT true of enzyme regulation?
Enzyme regulation ensures control on enzyme function
All enzymes are regulated by the same inhibitors
An enzyme can be negatively regulated
An enzyme can be positively regulated
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15
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Many coenzymes are derived from _____.
All of these answers are correct.
inorganic molecules
metals
vitamins
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thief
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gift
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gift
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15
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Enzymes are known as catalysts; this means that they can _____.
Make a chemical reaction go faster
None of the answers are correct
Both answers are correct
Lower the activation energy of a reaction
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15
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The location of substrate binding is called the
Induced Fit
Lactose
Catalyst
Active Site
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15
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The change in overall energy of a reaction is
slower with the help of an enzyme
faster with the help of an enzyme
Unchanged with the help of an enzyme
Increased with the help of an enzyme
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15
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What is induced fit?
A change in enzyme shape to bind to a substrate
A chemical reaction in a cell
The barrier to a chemical reaction in the cell
The rise in the free energy in a cell
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15
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The following conditions can denature an enzyme
extreme temperature and extreme pH
extreme pH and increased substrate concentration
increased substrate concentration only
extreme temperature only
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15
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An activator could have the following effect on an enzyme:
Increase of reaction rates
Decrease in enzyme function
Increase in inhibitor binding
Inhibition of substrate binding
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15
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Iron binds tightly to the heme group in the protein hemoglobin. What type(s) of helper molecule would this be considered?
The process through which food is converted to energy inside
The process through which oxygen is converted to energy
The process through which oxygen enters the cell
The process through which food enters the cell
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seesaw
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magnet
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gift
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lifesaver
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heart
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15
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A coenzyme is differentiated from the broader class of cofactors because it is _____.
metal
inorganic
organic
All of these answers are correct.
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15
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An increase in temperature
Provides shape to an enzyme
Increases the likelihood a enzyme and substrate will collide
Increases substrate concentration
Changes the shape of the substrate
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15
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Which of the following is true about enzymes?
Enzymes raise the activation energy
Enzymes leave the activation energy the same
Enzymes lower the activation energy
Enzymes increase the temperature
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baam
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