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WorksheetsBiochemistry Study Guide (Part 4)- Enzymes
Total questions: 17
Worksheet time: 17mins
Name
Class
Date
1.
Enzymes are an example of
a)
Lipids
b)
Carbohydrate
c)
Protein
d)
Nucleic Acid
2.
What is the function of an enzyme?
a)
enzymes break themselves into small pieces
b)
enzymes slow down chemical reactions
c)
enzymes speed up chemical reactions
d)
enzymes combine products to form reactants
3.
What is a substance called if it speeds up a chemical reaction?
a)
reusable
b)
catalyst
c)
specific
d)
fragile
4.
An enzyme speeds up a reaction by
a)
lowering the activation energy.
b)
raising the activation energy.
c)
releasing energy.
d)
absorbing energy.
5.
With what 3 letters do enzymes typically end?
a)
-ose
b)
-ase
c)
-ese
d)
-tic
6.
In the diagram, what is letter A?
a)
product
b)
substrate
c)
enzyme-substrate complex
d)
active site
7.
When an enzyme tightens around a substrate, this is called:
a)
An awkward hug
b)
Induced fit
c)
Competitive Inhibition
d)
Non competitive Inhibition
8.
Any substance that is acted upon by an enzyme is called a(n)?
a)
Coenzyme
b)
Substrate
c)
Vitamin
d)
Polypeptide
9.
Letter B...
a)
active site
b)
enzyme
c)
substrate
d)
products
10.
Letter D...
a)
active site
b)
enzyme
c)
substrate
d)
products
11.
Letter C...
a)
active site
b)
enzymes
c)
substrate
d)
products
12.
Letter E...
a)
active site
b)
enzyme
c)
substrate
d)
products
13.
An enzyme speeds up a chemical reaction in the cell but can only be used once. True or False?
a)
true
b)
false
14.
What happens when enzymes are heated to a high temperature?
a)
The enzymes die.
b)
The shapes of the enzyme are altered denature
c)
The enzymes' amino acid sequence changes.
d)
The enzymes remain the same
15.
Based on the graph, what is the optimal temperature for this enzyme?
a)
15oC
b)
40oC
c)
30oC
d)
35oC
16.
Which of the following conclusions can be drawn from this graph?
a)
The optimum pH of the enzyme is 6.6.
b)
The optimum pH of the enzyme is 5.8
c)
The enzyme’s activity increases as pH increases 5.0 to 9.0
d)
The enzyme’s activity is greater around pH of 8.0 .
17.
Which enzyme is most efficient in a basic solution?
a)
A
b)
B
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