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WorksheetsEnzymes
Total questions: 19
Worksheet time: 10mins
Name
Class
Date
1.
What type of macromolecule are enzymes?
a)
Protein
b)
Carbohydrate
c)
Lipid
d)
Nucleic Acid
2.
Which of these is most likely an enzyme? (Based on the suffix)
a)
Sucrose
b)
Galactose
c)
Fructose
d)
Amylase
3.
What is a Cataylst?
a)
A substance that speeds up a rate of chemical reaction.
b)
Molecules that make enzymes work harder and faster
c)
reaction of an enzyme
d)
A substance that slows down a rate of chemical reaction.
4.
What is another name for enzymes?
a)
chemical catalyst
b)
microorganism
c)
biological catalyst
d)
catalyst
5.
What is the primary role of enzymes inside of living cells?
a)
organizing the translation of proteins
b)
allowing cells to be motile
c)
absorbing ultraviolet rays
d)
speeding up chemical reactions
6.
What makes an enzyme substrate specific?
a)
Size
b)
Shape
c)
Name
d)
Location it is found in
7.
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 .
8.
Enzymes need certain environmental conditions in order to function properly. What happens when enzymes are heated to a high temperature?
a)
they die
b)
they denature
c)
they change their amino acid sequence
d)
they work better
9.
The part of the enzyme that the substrate bonds to is called the _____.
a)
active site
b)
activation energy
c)
bond site
d)
peptide bond
10.
Which of these do NOT affect enzyme activity?
a)
Temperature
b)
pH
c)
Competitive Inhibitors
d)
Carbohydrates
11.
Which of these is NOT true.
a)
Enzymes can denature (change shape) when the temperature gets too high.
b)
Enzymes can only be used once in a chemical reaction.
c)
Enzymes can denature when the pH changes.
d)
Enzymes speed up chemical reactions.
12.
Which is NOT true?
a)
Enzymes speed up chemical reactions
b)
Enzymes react best at a specific temperature
c)
Enzymes only control ONE type of reaction
d)
Enzymes are made of lipids
13.
What is the name for the mechanism of enzyme activity?
a)
Lock and key
b)
jigsaw puzzle
c)
hammer and nail
d)
two hands pattern
14.
How do enzymes work?
a)
Slow down chemical reactions
b)
Prevent chemical reactions from working
c)
increase the activation energy
d)
speed up the chemical reaction
15.
Enzymes speed up chemical reactions because they...
a)
decrease the activation energy for reaction
b)
make lots of bonds
c)
increase the activation energy for reaction
d)
make products into reactants quickly
16.
Enzymes are able to speed up chemical reactions because they -
a)
increase the temperature inside the cell
b)
reduce the friction between the reactants
c)
make the raw materials more chemically reactive
d)
lower the activation energy of the reaction
17.
The primary role of a digestive enzyme would be to –
a)
build new polymers
b)
absorb energy from the sun
c)
break apart large molecules
d)
slow down harmful reactions
18.
True or False?
You can live your life just fine without Enzymes
You can live your life just fine without Enzymes
a)
True
b)
False
19.
What can destroy an Enzyme?
a)
Poison
b)
Extreme Tempatures
c)
High Acidicity
d)
All of the Above
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