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Enzymes
Test Description: Test your knowledge of enzymes by playing this review game!
Instructions: Answer all questions to get your test result.
1) What type of molecule is an enzyme?
A
Protein
B
Nucleic Acid
C
Lipid
D
Carbohydrate
2) What are enzymes made of?
A
nucleotides
B
amino acids
C
fatty acids
D
monosaccharides
3) What is the function of enzymes in living things?
A
they catalyze chemical reactions
B
they provide structure and support
C
they store energy for long periods of time
D
they store and transmit hereditary information
4) Enzymes speed up chemical reactions by
A
lowering the activation energy of the reaction
B
producing more substrate molecules
C
creating heat energy
D
getting consumed in the reaction
5) The molecules on which an enzyme acts is called a(n)
A
substrate
B
product
C
substituent
D
enzymatic molecule
6) The part of an enzyme to which the substrate attaches is called the
A
catalytic converter
B
bonding platform
C
active site
D
activation energy
7) The relationship between an enzyme and its substrate is often compared to a
A
house and front door
B
car and speed bump
C
lock and key
D
hammer and nail
8) Which of the following can affect the activity of an enzyme?
A
all of the above
B
temperature
C
pH
D
concentration (amount) of substrate
9) What does it mean for an enzyme to denature
A
it loses its shape
B
it works more effectively
C
it is no longer organic
D
it leaves the body
10) The enzyme pepsin works best at a pH of 2. What most likely will happen if pepsin is placed in a solution with a pH of 8?
A
there will be no change in its activity
B
its activity will increase
C
its activity will decrease
D
none of the above
*select an answer for all questions
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