WorksheetsBiochemistry Review
Total questions: 20
Worksheet time: 20mins
Name
Class
Date
1.
Proteins are made of smaller units called:
a)
Glucose
b)
Cellulose
c)
Fatty acids
d)
Amino acids
2.
Organic compounds are always based on what two elements?
a)
hydrogen and oxygen
b)
nitrogen and oxygen
c)
hydrogen and carbon
d)
nitrogen and carbon
3.
The four organic compounds found in living things are?
a)
Carbohydrates, Lipids, Nucleic Acids, and Oxygen
b)
Carbohydrates, Lipids, Proteins, and Carbon
c)
Carbohydrates, Lipids, Proteins, Nucleic Acids
d)
Carbon, Lipids, Proteins, Nucleic Acids
4.
Enzymes are examples of this organic compound...
a)
Carbohydrate
b)
Lipid
c)
Protein
d)
Nucleic Acid
5.
Oils are examples of this type of organic compound...
a)
Carbohydrate (Sugars)
b)
Lipid (Fats)
c)
Protein
d)
Nucleic Acid
6.
This is an example of
a)
Lipid
b)
Carbohydrate
c)
Protein
d)
Nucleic Acid
7.
What is an Enzyme?
a)
energy needed to get a reaction started
b)
large compound formed from combinations of many monomers
c)
proteins that act as biological catalyst to speed up reactions
8.
The effect of temperature on the relative rate of action of an enzyme is represented in the graph below.
The optimum temperature for the action of this enzyme is approximately
The optimum temperature for the action of this enzyme is approximately
a)
15⁰C
b)
22⁰C
c)
37⁰C
d)
50⁰C
9.
Which statement best describes the enzyme represented in the graphs below?
a)
This enzyme works best at a temperature of 35⁰C and a pH of 8
b)
This enzyme works best at a temperature of 50⁰C and a pH of 12
c)
This enzyme works best at a temperature of 35⁰C and a pH of 12
10.
Which compound below is Organic?
a)
C6H12O6
b)
CO₂
c)
NH3
d)
O2
11.
In a molecule of DNA the sub-units are called
a)
nucleotides
b)
simple sugars
c)
lipids
d)
proteins
12.
Which are INORGANIC substances?
a)
Lipid and Salt (NaCl)
b)
Nitrogen and Carbohydrate
c)
Water and Salt (NaCl)
d)
Water and Lipid
13.
Which of the following is NOT a function of proteins
a)
Acts as a catalyst to speed up reactions
b)
Fight infections and diseases (Immunity)
c)
carries oxygen within red blood cells
d)
Store genetic Information
14.
Which of the following is not one of the four properties of water?
a)
Universal Solvent
b)
Non-polar
c)
Expansion upon freezing
d)
Cohesion
15.
Which of the following contains the genetic code for protein synthesis?
a)
carbohydrate
b)
lipid
c)
protein
d)
nucleic acid
16.
Why will salt form a solution with water but sand will not?
a)
Salt is polar, while sand is non-polar
b)
Salt is non-polar, while sand is polar
c)
Salt and sand are polar
d)
Sand is more coarse than salt
17.
Which macromolecules has a nitrogen base and phosphate found in its structure?
a)
carbohydrate
b)
lipid
c)
protein
d)
nucleic acid
18.
What is one thing that a carbohydrate and protein have in common?
a)
They are both non-polar
b)
They both contain a nitrogen in their stucture
c)
They are polymers
d)
They are both made up of amino acids
19.
If a substance has the elements CHO and is not soluble in water, which of the macromolecules would this substance be?
a)
Carbohydrate
b)
Lipid
c)
Protien
d)
Nucleic Acid
20.
What is being represented by letter C?
a)
Enzyme
b)
Active site
c)
Substrate
d)
Lipid
100 %
