ACS Biochemistry Exam 100 Questions
and Answers Verified Solutions Latest
Update 2026/2027
Question:
What is the difference between an apo and holoprotein
Answer:
Apo = protein part of an enzyme without its characteristic prosthetic group (cofactor is not bound)
Holo = apoprotein with its prosthetic group (cofactor bound)
Question:
Many amino acids exist as what isomer?
Answer:
L
Question:
Most alpha amino acids are _____, expect for glycine. All amino acids have ______ unique to
itself.
Answer:
Chiral, R-group/4th substituent
Question:
When naming an amino acid using biochemical designation, what carbon do you start numbering
at?
Answer:
At the alpha carbon (one after the COO- group)
,Question:
What is the structure, 1 letter abbreviation, and 3 letter abbreviation for: Glycine?
Answer:
Glycine: G, Gly
Question:
What is the structure, 1 letter abbreviation, and 3 letter abbreviation for: Alanine?
Answer:
Alanine: A, Ala
Question:
What is the structure, 1 letter abbreviation, and 3 letter abbreviation for: Proline?
Answer:
Proline: P, Pro
Question:
What is the structure, 1 letter abbreviation, and 3 letter abbreviation for: Valine?
Answer:
Valine: V, Val
Question:
What is the structure, 1 letter abbreviation, and 3 letter abbreviation for: Leucine?
Answer:
Leucine: L, Leu
Question:
What is the structure, 1 letter abbreviation, and 3 letter abbreviation for: Isoleucine?
Answer:
, Isoleucine: I, Ile
Question:
What is the structure, 1 letter abbreviation, and 3 letter abbreviation for: Methionine?
Answer:
Methionine: M, Met
Question:
What is the structure, 1 letter abbreviation, and 3 letter abbreviation for: Serine?
Answer:
Serine: S, Ser
Question:
What is the structure, 1 letter abbreviation, and 3 letter abbreviation for: Threonine?
Answer:
Threonine: T, Thr
Question:
What is the structure, 1 letter abbreviation, and 3 letter abbreviation for: Cysteine?
Answer:
Cysteine: C, Cys
Question:
What is the structure, 1 letter abbreviation, and 3 letter abbreviation for: Asparagine?
Answer:
Asparagine: N, Asn
Question:
and Answers Verified Solutions Latest
Update 2026/2027
Question:
What is the difference between an apo and holoprotein
Answer:
Apo = protein part of an enzyme without its characteristic prosthetic group (cofactor is not bound)
Holo = apoprotein with its prosthetic group (cofactor bound)
Question:
Many amino acids exist as what isomer?
Answer:
L
Question:
Most alpha amino acids are _____, expect for glycine. All amino acids have ______ unique to
itself.
Answer:
Chiral, R-group/4th substituent
Question:
When naming an amino acid using biochemical designation, what carbon do you start numbering
at?
Answer:
At the alpha carbon (one after the COO- group)
,Question:
What is the structure, 1 letter abbreviation, and 3 letter abbreviation for: Glycine?
Answer:
Glycine: G, Gly
Question:
What is the structure, 1 letter abbreviation, and 3 letter abbreviation for: Alanine?
Answer:
Alanine: A, Ala
Question:
What is the structure, 1 letter abbreviation, and 3 letter abbreviation for: Proline?
Answer:
Proline: P, Pro
Question:
What is the structure, 1 letter abbreviation, and 3 letter abbreviation for: Valine?
Answer:
Valine: V, Val
Question:
What is the structure, 1 letter abbreviation, and 3 letter abbreviation for: Leucine?
Answer:
Leucine: L, Leu
Question:
What is the structure, 1 letter abbreviation, and 3 letter abbreviation for: Isoleucine?
Answer:
, Isoleucine: I, Ile
Question:
What is the structure, 1 letter abbreviation, and 3 letter abbreviation for: Methionine?
Answer:
Methionine: M, Met
Question:
What is the structure, 1 letter abbreviation, and 3 letter abbreviation for: Serine?
Answer:
Serine: S, Ser
Question:
What is the structure, 1 letter abbreviation, and 3 letter abbreviation for: Threonine?
Answer:
Threonine: T, Thr
Question:
What is the structure, 1 letter abbreviation, and 3 letter abbreviation for: Cysteine?
Answer:
Cysteine: C, Cys
Question:
What is the structure, 1 letter abbreviation, and 3 letter abbreviation for: Asparagine?
Answer:
Asparagine: N, Asn
Question:
