WorksheetsEnzymes
Total questions: 10
Worksheet time: 6mins
Name
Class
Date
1.
Enzymes are an example of
a)
Lipids
b)
Carbohydrate
c)
Protein
d)
Nucleic Acid
2.
Enzymes are capable of increasing the rate of a chemical reaction within a living cell. Enzymes accomplish this through which of the following means?
a)
reducing the number of products
b)
reducing the activation energy
c)
increasing the temperature of the cell
d)
increasing the concentration of reactants
3.
Any substance that is acted upon by an enzyme is called a(n)?
a)
Coenzyme
b)
Substrate
c)
Vitamin
d)
Polypeptide
4.
After the enzyme and substrate bind together and perform the reaction, what does the substrate become?
a)
a substrate
b)
an enzyme
c)
a product
d)
an active site
5.
At high temperatures enzyme activity declines because of:
a)
Denaturation
b)
Decreased Kinetic Motion
c)
Increased H-Bonding
d)
Dissociation of Ionic Compounds
6.
At low temperatures enzyme activity declines because of:
a)
Denaturation
b)
Decreased Kinetic Motion
c)
Increased H-Bonding
d)
Dissociation of Ionic Compounds
7.
Which explanation best fits the graph for pH's effect on an enzyme?
a)
As the pH gets closer to neutral more H-Bonds are broken
b)
Larger numbers of H+ & OH- ions distort the active site
c)
There are more collisions between substrates and active sites near the optimal pH
d)
Low pHs cause more H-Bonds to happen near the active site
8.
The mouth contains salivary glands which produce
a)
polysaccharides
b)
amylases
c)
proteases
d)
lipases
9.
Pepsin is an enzyme that acts on
a)
lipids
b)
proteins
c)
carbohydrates
d)
nucleic acids
10.
Babies do not have well developed digestive systems for breaking down proteins; therefore baby food is prepared after treatment with which enzyme?
a)
protease
b)
lipase
c)
carbohydrase
d)
synthase
100 %
