Biochemistry C785 WGU module 2 Exam
2026 Questions and Answers
amino group - Correct answer-Consists of hydorgen and nitrogen atoms (-NH3+)
carboxyl group - Correct answer-A -COOH group, found in organic acids.
R group - Correct answer-a functional group that defines a particular amino acid
that makes it a specific protein (20 amino acids) aka side chain
alpha carbon - Correct answer-the central carbon atom of each amino acid
amino acid backbone - Correct answer-The structure comprised of the amino
group, carboxyl group with a central alpha carbon atom.
Hydrophobic - Correct answer-non polar, afraid of water
polar - Correct answer-Amino acid Molecule with partial charges. Mixes with
water.
charged - Correct answer-Amino acid has a positive or negative charge
Polypeptide - Correct answer-A single protein chain formed by amino acids
bonded together
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, peptide bond - Correct answer-The chemical bond that forms between the carboxyl
group of one amino acid and the amino group of another amino acid by
dehydration ( In which a water molecule is removed, C-N bond)
Hydrolysis - Correct answer-Peptide bonds can be broken by this...A chemical
process that splits a molecule by adding water. ( this happened frequently in the
stomach when proteins begin to bee digested into their amino acids)
Residue - Correct answer-Remaining portion of amino acids after linked by peptide
bonds ( how R groups get their name)
N-terminus - Correct answer-the end of a polypeptide or protein that has a free
amino group ( usually on the left)
C-terminus - Correct answer-the end of a polypeptide or protein that has a free
carboxyl group ( usually on the right)
primary structure - Correct answer-sequence of amino acids in a polypeptide aka
amino acid chain
secondary structure - Correct answer-Shape formed by hydrogen bonding of amino
acid back bone- usually an alpha helix or beta sheet
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2026 Questions and Answers
amino group - Correct answer-Consists of hydorgen and nitrogen atoms (-NH3+)
carboxyl group - Correct answer-A -COOH group, found in organic acids.
R group - Correct answer-a functional group that defines a particular amino acid
that makes it a specific protein (20 amino acids) aka side chain
alpha carbon - Correct answer-the central carbon atom of each amino acid
amino acid backbone - Correct answer-The structure comprised of the amino
group, carboxyl group with a central alpha carbon atom.
Hydrophobic - Correct answer-non polar, afraid of water
polar - Correct answer-Amino acid Molecule with partial charges. Mixes with
water.
charged - Correct answer-Amino acid has a positive or negative charge
Polypeptide - Correct answer-A single protein chain formed by amino acids
bonded together
©COPYRIGHT 2025, ALL RIGHTS RESERVE 1
, peptide bond - Correct answer-The chemical bond that forms between the carboxyl
group of one amino acid and the amino group of another amino acid by
dehydration ( In which a water molecule is removed, C-N bond)
Hydrolysis - Correct answer-Peptide bonds can be broken by this...A chemical
process that splits a molecule by adding water. ( this happened frequently in the
stomach when proteins begin to bee digested into their amino acids)
Residue - Correct answer-Remaining portion of amino acids after linked by peptide
bonds ( how R groups get their name)
N-terminus - Correct answer-the end of a polypeptide or protein that has a free
amino group ( usually on the left)
C-terminus - Correct answer-the end of a polypeptide or protein that has a free
carboxyl group ( usually on the right)
primary structure - Correct answer-sequence of amino acids in a polypeptide aka
amino acid chain
secondary structure - Correct answer-Shape formed by hydrogen bonding of amino
acid back bone- usually an alpha helix or beta sheet
©COPYRIGHT 2025, ALL RIGHTS RESERVE 2
