AnswersFL-2000310-Biology 1 Sem 1 - FlexCatalysts

Catalysts Answers

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Which two substances bind using a lock-and-key mechanism?

A
enzyme and substrate
B
reactant and substrate
C
substrate and product
D
reactant and product
2
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Which term describes an enzyme?

A
substrate
B
reactant
C
catalyst
D
product
3

Which is the best definition of activation energy?

A
the energy required to end a chemical reaction
B
the energy required to bind a substrate to an active site
C
the energy required to form or break the bonds of reactant molecules
D
the energy required to re-form bonds in product molecules
4

Which statement best describes the amount of catalyst that remains at the end of a reaction?

A
More catalyst is present at the end than at the beginning of the reaction.
B
Less catalyst is present at the end than at the beginning of the reaction.
C
The amount of catalyst is the same at the end as at the beginning of the reaction.
D
The catalyst is consumed by the reaction, so none remains at the end of the reaction.
5

Which component is released from the active site of an enzyme during a chemical reaction?

A
reactant
B
product
C
substrate
D
protein

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