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WorksheetsAmino Acids to Protein Changes
Total questions: 26
Worksheet time: 1hrs 16mins
What are polypeptides?
chains of carbohydrates
chains of amino acids
chains of fatty acids
chains of nucleic acids
The reaction which occurs when a polypeptide is formed is called .....
a condensation reaction
a hydrolysis reaction
a hydration reaction
a peptide reaction
Which parts of the amino acid react with another amino acid to form a peptide bond?
The carboxyl group and the R group
The carboxyl group and the amino group
The amine group and the R group
The R group and carbon backbone
What is the name of the bond that is formed when a polypeptide is made?
Ester bond
Glycosidic bond
Peptide bond
Amine bond
Amino acids are different from one another due to .......
their differing carboxyl group
their differing amine group
their differing R group
their differing carbon backbone
How many amino acids can be in a polypeptide?
20
200
2,000
20,000+
Due to organisms having 20 amino acids that can be sequenced in any order and in any chain length, the number of possible combinations in a polypeptide is almost infinite.
True
False
Where does a cell get the information it needs to determine which order the amino acids should be in a polypeptide?
Ribosomes
DNA
RNA
The sequence is random
Can more than one polypeptide chain link together?
Yes
No
How many bases are required in a genetic sequence to code for one amino acid?
one
two
three
four
The amino acid sequence determines the shape or conformation of the resulting protein because of......
hydrogen bonding
ionic bonding
covalent bonding
all of these answers
Polypeptides form proteins.
True
False
Denaturation is .......
When a polypeptide cannot be formed
When the stabilizing bonds between R groups are broken
When a gene codes for the wrong sequence
When a protein is too big
Denaturation is not permanent, as the bonds can be re-established.
True
False
What conditions usually do not cause denaturation?
Extreme heat
Extreme pH
Dissolving in water
All of theses
What is a proteome?
The entire complement of genes that is or can be expressed by a cell, tissue, or organism.
The entire complement of proteins that is or can be expressed by a cell, tissue, or organism.
The entire complement of amino acids that is or can be expressed by a cell, tissue, or organism.
All of these answers.
A proteome is as unique to a person as their genome is.
True
False
The monomers of a protein are .....
amino acids
nucleic acids
monosaccharides
nucleotides
All 'R' groups are hydrophillic.
True
False
Proteins are built in the following sequence:
A: two or more protein units attach to one another, or the protein attaches to a non-protein structure
B: amino acid sequence is set
C: chain folds back on itself
D: beta pleating or spiraling occurs
Primary: A, Secondary: B, Tertiary: C, Quaternary: D
Primary: B, Secondary: D, Tertiary: C, Quaternary: A
Primary: C, Secondary: D, Tertiary: B, Quaternary: A
Primary: D, Secondary: B, Tertiary: C, Quaternary: A
Which protein?
It is the most abundant protein in your body. It is the major component of connective tissues that make up several body parts, including tendons, ligaments, skin and muscles. It has many important functions, including providing your skin with structure and strengthening your bones.
Collagen
Insulin
Rubisco
Rhodopsin
Immunoglobulin
Y represents...
Primary structure
Secondary structure
Tertiary structure
Quaternary structure
Which structure(s) are due to hydrogen bonding?
Y & Z
W & Y
X & Y
X & W
A & Z
Which of the following is NOT a reason for denaturation in proteins?
Breaking of the peptide bonds between amino acid in the primary sequence
Breaking of hydrogen bonds, hydrophobic interactions, ionic bonds, and disulfide bonds between R groups
Disruption of the hydrogen bonds between the amino hydrogen and carboxyl oxygen atoms in the peptide backbone
These are all reasons for denaturation
Which shows a peptide bond?
What type of reaction breaks peptide bonds?
Condensation reaction
Hydrolysis reaction
Anabolic reaction
Denaturation reaction
