NEW
Font size
S
M
L
XL
WorksheetsEnzymes
Total questions: 15
Worksheet time: 14mins
Name
Class
Date
1.
Enzymes are an example of
a)
Lipids
b)
Carbohydrate
c)
Protein
d)
Nucleic Acid
2.
What is the purpose of an enzyme?
a)
give permission for the reaction
b)
raise activation energy
c)
speed up reactions
d)
control how many reactions occur
3.
What 3 letters do enzymes typically end in?
a)
-ose
b)
-ase
c)
-ese
d)
-tic
4.
In the diagram, what is letter A?
a)
product
b)
substrate
c)
enzyme-substrate complex
d)
active site
5.
Letter D...
a)
active site
b)
enzyme
c)
substrate
d)
products
6.
Letter B...
a)
active site
b)
enzyme
c)
substrate
d)
products
7.
Letter C...
a)
active site
b)
enzymes
c)
substrate
d)
products
8.
Letter E...
a)
active site
b)
enzyme
c)
substrate
d)
products
9.
In a chemical reaction, ________ are what you have at the end
a)
Products
b)
Molecules
c)
Reactants
d)
Substances
10.
An enzyme speeds up a reaction by
a)
lowering the activation energy.
b)
raising the activation energy.
c)
releasing energy.
d)
absorbing energy.
11.
Based on the graph, what is the optimal temperature for this enzyme?
a)
15oC
b)
40oC
c)
30oC
d)
35oC
12.
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
13.
What is a substance called if it speeds up a chemical reaction?
a)
reusable
b)
catalyst
c)
specific
d)
fragile
14.
Every enzyme has a optimal temperature and pH. True or False?
a)
True
b)
False
15.
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 .
Reset
