What is activation energy?

ENZYMES

Passage
•
Science
•
9th Grade
•
Easy
PATRICIA PARROTT
Used 3+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Energy released during a reaction
Energy required to start a reaction
Energy stored in products
Energy lost as heat
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the effect of an enzyme on the energy required for a reaction?
It increases the energy required
It decreases the energy required
It has no effect
It doubles the energy required
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the transition state in a chemical reaction?
The initial state of reactants
The final state of products
The high-energy state during a reaction
The low-energy state during a reaction
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the effect of enzymes on the transition state of a reaction?
They raise the energy of the transition state
They lower the energy of the transition state
They have no effect
They eliminate the transition state
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of activation energy in a chemical reaction?
It is the energy released
It is the energy required to start the reaction
It is the energy stored in products
It is the energy lost as heat
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why are enzymes described as "picky"?
They can fit multiple substrates.
They can only fit one kind of substrate.
They change shape frequently.
They are not reusable.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the term for the location where a substrate fits into an enzyme?
Active site
Inactive site
Binding site
Reaction site
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