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Protein Engineering - Retest

Total questions: 45

Worksheet time: 53mins

Name
Class
Date
1.

Which of the following bond(s) do(es) NOT exist in a secondary structure?

a)

Peptide bond

b)

Hydrogen bond

c)

Disulphide bond

d)

Ionic bond

2.

The repeating units of protein are

a)

Amino acids

b)

Glucose

c)

Fatty acid

d)

Peptides

3.

Based on the diagram, the side chain of amino acid alanine is;

a)

NH2

b)

COOH

c)

H

d)

CH3

4.
In RNA, Uracil pairs with ______. 
a)
cytosine
b)
adenine
c)
guanine
d)
thymine
5.
The process to go from DNA to mRNA is _______
a)
translation
b)
transcription
c)
replication
6.
What amino acid is represented by the codon UUA?
a)
Phenylalanine
b)
Tyrosine
c)
Leucine
d)
Stop codon
7.
Which component of DNA determines the traits of an organism? 
a)
Nitrogen Bases
b)
Sugar-Phosphate Backbone
c)
Hydrogen bonds
8.
The function of _____ is to transport amino acids in the cytoplasm to the ribosome.
a)
rRNA
b)
tRNA
c)
mRNA
d)
DNA
9.

What is this molecule called?

a)

nucleotide

b)

fatty acid

c)

amino acid

d)

monosaccharide

e)

glycerol

10.

Which colored box highlights the amino group?

a)

Blue (left)

b)

Turquoise (top)

c)

Orange

d)

Red

e)

Purple

11.

Which colored box is different for every amino acid?

a)

Blue (left)

b)

Turquoise (top)

c)

Orange

d)

Red

e)

Purple

12.

Which colored box is the reason this is an organic molecule?

a)

Blue (left)

b)

Turquoise (top)

c)

Orange

d)

Red

e)

Violet

13.

Which colored box highlights the carboxyl?

a)

Blue (left)

b)

Turquoise (top)

c)

Orange

d)

Red

e)

Purple

14.
The central dogma of biology states that information flows in one direction from 
a)
nuclei to RNA to cytoplasm
b)
ribosomes to proteins to DNA
c)
genes to nuclei to ribosomes
d)
DNA to RNA to proteins
15.
What is the term for a three-nucleotide sequence that codes for an amino acid?
a)
base
b)
codon
c)
amine
d)
serine
16.
What is the NH2 (nitrogen-containing) group on this amino acid called?
a)
amino group
b)
R group
c)
carboxyl group
17.

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

18.

The chain of amino acids folds and coils on itself

a)

Primary

b)

Secondary

c)

Tertiary

d)

Quaternary

19.

The entire polypeptide forms a three-dimensional structure

a)

Primary

b)

Secondary

c)

Tertiary

d)

Quaternary

20.

Two or more polypeptides attached together and work as one unit

a)

Primary

b)

Secondary

c)

Tertiary

d)

Quaternary

21.
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.
22.
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.
23.
How many different amino acids are there?
a)
15
b)
20
c)
25
d)
30
24.
What is the monomer of proteins?
a)
amino acids
b)
polypeptides
c)
nucleotides
d)
monosaccharides
25.

The diagram shows a bond forming between two amino acids. What is the name of this reaction?

a)

Condensation

b)

Hydrolysis

c)

Pepysis

d)

Oxidation

26.
Refers to the three-dimensional structure of an entire amino acid chain in a protein molecule
a)
tertiary structure
b)
primary structure
c)
secondary structure
d)
fibrous proteins
27.
What is the monomer of a protein?
a)
amino acid
b)
monosaccharide
c)
fatty acid
d)
nucleic acid
28.
The name of the initial chain of monomers in a protein is called.....
a)
polypeptide
b)
polysaccharide
c)
polyester
d)
polynucleotide
29.
The two types of folding in the secondary structure are.....
a)
alpha-helix & beta-pleated sheets
b)
polypeptide & nucleotide
c)
globular & fibrous
30.
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
31.
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'
32.
What is the name of this molecule?
a)
amino acid
b)
nucleotide
c)
monosaccharide
d)
triglyceride
33.
The diagram shows the structure of an amino acid. Which type of molecule is formed from amino acids?
a)
lipids
b)
proteins
c)
carbohydrates
d)
nucleic acids
34.
The bond between two amino acids is called...
a)
Peptide bond
b)
Amino acid bond
c)
Nothing. There isn't a name for it
d)
Hydrogen bond
35.
Water-repelling
a)
hydrophobic
b)
myoglobin
c)
coagulation
d)
gluten
36.

Myoglobin is: (3 correct answers)

a)

pigment in muscle tissue

b)

iron-binding protein in muscle tissue

c)

flecks of fat in muscle tissue

d)

cherry-red until prolonged exposure to O2

37.

Process of adding and removing O2 to a compound.

a)

mixing and reducing

b)

oxidation and reduction

c)

denaturing and coagulation

d)

baking and cooling

38.

Any change of the shape of a protein molecule without breaking peptide bonds.

a)

denaturation

b)

oxidation

c)

reduction

d)

essential amino acid

39.

Coagulation is......

a)

adding or removing oxygen

b)

proteins forming solid or semi-soft clots

c)

gluten formation

d)

temperature change

40.

Protein merupakan polimer dari asam amino. Gugus fungsi yang ada di dalam asam amino adalah…

a)

–OH

b)

–COOH & –NH2

c)

–OH & –COOH

d)

NH3 & –COOH

e)

–CO– & –NH2

41.
The process to go from mRNA to a protein is called ____
a)
transcription
b)
rRNA
c)
replication
d)
translation
42.
What process is going on in this photo? 
a)
Transcription 
b)
Translation 
c)
Replication 
d)
All the above 
43.
21 nucleotides will provide how many codons?
a)
3 amino acids
b)
5 amino acids
c)
7 amino acids
d)
9 amino acids
44.

How many amino acids will FIFTEEN codons code for?

a)

three

b)

five

c)

fifteen

d)

thrity

45.

How many amino acids are found on one tRNA?

a)

20

b)

4

c)

1

d)

3

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