Enzymes

Quiz
•
Biology
•
9th Grade
•
Hard
Standards-aligned
Charles Martinez
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of an enzyme?
give permission for the reaction
speed up reactions
raise activation energy
control how many reactions occur
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when enzymes are heated to a high temperature?
The enzymes die.
The enzymes' amino acid sequence changes.
The shapes of the enzyme are altered or denatured
The enzymes remain the same
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to an enzyme when it is denatured?
Activation energy is lowered.
It loses its shape.
It becomes stronger.
Activation energy is raised.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following conclusions can be drawn from this graph?
The optimum pH of the enzyme is 6.6.
The enzyme’s activity increases as pH increases 5.0 to 9.0
The optimum pH of the enzyme is 5.8
The enzyme’s activity is greater around pH of 8.0 .
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Most enzymes are composed of .....
Lipids
Proteins
Carbohydrates
Nucleic Acids
Tags
NGSS.HS-LS1-1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Enzymes in your body probably work best at which of the following temperatures>
25oC
37oC
98oC
210oC
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Where do substrates bind on an enzyme?
voltage-gated channels
calcium channels
surface receptor
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