WorksheetsMACRO Review CW
Total questions: 18
Worksheet time: 13mins
Name
Class
Date
1.
Enzymes are
a)
nucleic acids
b)
proteins
c)
lipids
d)
carbohydrates
2.
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 .
3.
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
4.
In the diagram, what is letter A?
a)
product
b)
substrate
c)
enzyme-substrate complex
d)
active site
5.
An enzyme speeds up a reaction by
a)
lowering the activation energy.
b)
raising the activation energy.
c)
releasing energy.
d)
absorbing energy.
6.
In a chemical reaction, ________ are what you have at the end
a)
Products
b)
Molecules
c)
Reactants
d)
Substances
7.
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
8.
Label the parts of the enzyme model
a)Substrate
b)Products
c)Enzyme
d)Active site
1
2
3
4
1)
2)
3)
4)
9.
Which major macromolecule is being represented in this image?
a)
carbohydrate
b)
lipid
c)
protein
d)
nucleic acid
10.
What is the function of nucleic acids?
a)
store genetic information
b)
store energy (long-term)
c)
store energy (short-term)
d)
build skin, hair, nails, muscles
11.
Which macromolecule stores energy, insulates us, and makes up the cell membrane?
a)
lipids
b)
proteins
c)
carbohydrates
d)
nucleic acids
12.
Glycerol and fatty acids combine to form...?
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
13.
Carbon, Hydrogen, Oxygen and Nitrogen are elements in what biomolecule?
a)
Carbohydrate
b)
Lipid
c)
Protein
d)
Nucleic acid
14.
What is the key role (function) of carbohydrates?
a)
energy storage
b)
immunity, muscles, structure for tissues, cell metabolism
c)
instant energy for cells and body functions
d)
genetic information (heredity)
15.
What elements (monomers) make up nucleic acids?
a)
C, H, O
b)
C, H, O, N, (S)
c)
C, H, O, N, P
16.
What is the key role (function) of a protein?
a)
instant energy for the cell/body
b)
hormones, buoyancy, forms cell membranes, insulation, energy storage
c)
growth, repair, and energy, immune system, enzymes
d)
store and transmit genetic information/heredity
17.
Identify the nucleic acid:
a)
b)
c)
d)
18.
What elements make up lipids?
a)
C, H, O
b)
C, H, O, N
c)
C, H, O, N, P
100 %
