WorksheetsProtein Folding
Total questions: 16
Worksheet time: 32mins
Name
Class
Date
1.
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.
2.
The structure of proteins can be changed by environmental factors such as temperature or pH.
a)
True
b)
False
3.
When a protein unfolds, it is
a)
Denatured
b)
Building
c)
Adding amino acids
d)
Making food
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.
How many structures or stages are there in proteins?
a)
1
b)
2
c)
3
d)
4
6.
The two types of folding in the secondary structure are.....
a)
alpha-helix & beta-pleated sheets
b)
polypeptide & nucleotide
c)
globular & fibrous
7.
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
8.
The name of the initial chain of monomers in a protein is called.....
a)
polypeptide
b)
polysaccharide
c)
polyester
d)
polynucleotide
9.
The main bonding in the secondary structure of a protein is due to.....
a)
covalent bonding
b)
ionic bonding
c)
hydrogen bonding
d)
polar bonding
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.
which of the following terms refers to the order in which amino acids are linked together in a protein.
a)
Primary
b)
Secondary
c)
Tertiary
d)
Quaternary
12.
The chain of amino acids folds and coils on itself
a)
Primary
b)
Secondary
c)
Tertiary
d)
Quaternary
13.
The entire polypeptide forms a three-dimensional structure
a)
Primary
b)
Secondary
c)
Tertiary
d)
Quaternary
14.
Two or more polypeptides attached together and work as one unit
a)
Primary
b)
Secondary
c)
Tertiary
d)
Quaternary
15.
During the tertiary folding stage, polar amino acids will orient themselves on the ____________ of the molecule.
a)
interior
b)
exterior
c)
positive side
d)
negative side
16.
During the tertiary folding stage, non-polar amino acids will orient themselves on the ____________ of the molecule.
a)
interior
b)
exterior
c)
positive side
d)
negative side
100 %
