8.1a IB Bio Enzymes

Quiz
•
11th - 12th Grade
•
Medium
lesley stevens
Used 109+ times
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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The sum total of all chemical reactions that occur within an organism is it's
metabolism.
enzyme-driven reaction.
glycolysis.
activation energy.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Activation energy is the ________ input of energy required to trigger a chemical reaction.
initial
final
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
After the substrate binds to the enzyme's active site, the active site is altered to reach the
transition state.
allosteric site.
reaction path.
net amount of energy.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Enzymes lower the activation energy of a reaction by
stressing the bonds in the substrate molecule.
increasing the net energy output of the reaction.
reacting with the allosteric site of the substrate.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The diagram illustrates
competitive inhibition.
non-competitive inhibition.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The red circle could represent
the enzyme.
the substrate.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In non-competitive inhibition, the inhibitor fits into the enzyme's
allosteric site.
active site.
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