
Enzymes Lesson
Presentation
•
Biology
•
9th Grade
•
Practice Problem
•
Easy
Standards-aligned
Jose Garza
Used 14+ times
FREE Resource
12 Slides • 10 Questions
1
2
Multiple Choice
Identify the enzyme in the diagram.
A
B
C
D
3
4
Multiple Choice
What are the three main characteristics of enzymes as described in the image?
Speed up chemical reactions
Highly specific to reactions
Sensitive to certain conditions
All of the above
5
6
Open Ended
How does the “lock and key” model explain enzyme specificity?
7
8
Multiple Choice
What role do enzymes play in chemical reactions?
They slow down reactions
They act as biological catalysts
They are not necessary for life
They only work in high temperatures
9
10
Open Ended
Compare the activation energy of the reaction with and without the enzyme.
11
12
Multiple Choice
What is the role of enzymes in cellular processes regarding specificity?
They can act on multiple substrates
They are not specific to any reaction
They are specific to one type of reaction or molecule
They can function without substrates
13
14
Multiple Choice
What are the two types of metabolic reactions illustrated in the image?
Anabolic reaction
Catabolic reaction
Both A and B
None of the above
15
16
Multiple Choice
What happens to enzyme activity when the temperature is too low, optimal, or too high?
Reactions speed up
Enzyme becomes denatured
Enzyme works best at 0°C
Reactions slow down
17
18
19
Multiple Choice
The diagram represents one way an enzyme can be inhibited. Which statement explains the effect of an inhibitor on an enzyme?
A substrate will be able to bond with the enzyme.
The enzyme will likely be attacked by immune cells
The enzyme will be unable to produce more enzymes.
A substrate will be unable to attach to the enzyme.
20
21
22
Open Ended
Compare the activation energy required by the two reactions shown in the energy diagrams.
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