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WorksheetsAmino Acids and Polypeptides Practice
Total questions: 20
Worksheet time: 15mins
Name
Class
Date
1.
The bond that joins amino acids are called:
a)
Peptide Bonds
b)
Ester Bonds
c)
Glycosidic Linkages
d)
Phosphodiester Bonds
2.
If a methyl group (-CH3), which does not like water, were at the 'R', the amino acid would likely be:
a)
Hydrophobic
b)
Hydrophilic
c)
Ionic
d)
Acidic
3.
Amino acids all have the same general structure except for the:
a)
Amino Group
b)
Carboxyl Group
c)
'R' Group
d)
Carbonyl Group
4.
The primary sequence of a protein refers to the:
a)
Order of amino acids
b)
α-Helix or β-Pleated Sheet
c)
Interaction of subunits
d)
Hydrogen Bonding
5.
Structures like an α-Helix are formed because of:
a)
Hydrophobic Interactions
b)
DiSulphide Bridges
c)
Salt Bridges
d)
Hydrogen Bonding
6.
The sequence of amino acids is determined by:
a)
Genes
b)
Hydrogen Bonds
c)
Like Dissolves Like
d)
pH
7.
What are the building blocks of proteins?
a)
amino acid
b)
fatty acid
c)
nucleotide
d)
lipid
8.
The level of protein structure that results from hydrogen bonding causing the protein to fold into α-helix and β-pleated sheets is known as
a)
primary structure
b)
secondary structure
c)
tertiary structure
d)
quaternary structure
9.
The name of the initial chain of monomers in a protein is called.....
a)
polypeptide
b)
polysaccharide
c)
polyester
d)
polynucleotide
10.
The tertiary structure folding in proteins is primary due to the interactions of....
a)
the 'R' groups
b)
the 'P' groups
c)
the 'A' groups
d)
the 'S'
11.
What is a peptide bond?
a)
Bond that holds two amino acids together.
b)
A bond that holds hydrogen and oxygen molecules together.
c)
A bond that holds the phosphate group of one nucleotide and a sugar of a neighboring nucleotide.
d)
A bond that is formed by the sharing of electrons.
12.
Two or more polypeptides attached together and work as one unit
a)
Primary
b)
Secondary
c)
Tertiary
d)
Quaternary
13.
What gives a protein its unique shape?
a)
the unique sequence of amino acids in its polypeptide chain
b)
the unique folding due to the sequence of amnio acids in the polypeptide chain
c)
hydrogen bonding & unique interactions between the 'R' groups
d)
all of these
14.
What type of amino acid is tyrosine?
a)
nonpolar
b)
polar
c)
basic
d)
acidic
15.
What type of amino acid is valine?
a)
nonpolar
b)
polar
c)
basic
d)
acidic
16.
What type of amino acid is lysine?
a)
nonpolar
b)
polar
c)
acidic
d)
basic
17.
What type of amino acid is aspartic acid?
a)
nonpolar
b)
polar
c)
acidic
d)
basic
18.
What type of amino acid is serine?
a)
nonpolar
b)
polar
c)
acidic
d)
basic
19.
What type of amino acid is asparagine?
a)
nonpolar
b)
polar
c)
acidic
d)
basic
20.
What type of amino acid is methionine?
a)
nonpolar
b)
polar
c)
acidic
d)
basic
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