BioChem 210 - Mod 3 Questions With Complete Solutions

BioChem 210 - Mod 3 Questions With
Complete Solutions
True or False: the amino acids serine and methionine both
contain sulfur atoms. correct answer: false

True or False: The following secondary structure shown below
is an example of a beta-turn. correct answer: False

True or False: The side chain of proline is bonded to the
backbone nitrogen atom. correct answer: True

True or False: The name of the molecule that binds to an
enzyme is called the apoenzyme. correct answer: False

True or False: An inhibitor that binds at the active site is an
uncompetitive inhibitor. correct answer: False

Which amino acids differ by only one atom?

Ser and Thr
Leu and Ile
Ala and Ser
Asp and Asn
Ser and Cys correct answer: Ser and Cys

The formation of a peptide bond between two amino acids is an
example of a(n) ________ reaction. correct answer:
Condensation

, The peptide Ala-Glu-Gly-Ala-Leu-Arg has __________.

A disulfide bond
Five peptide bonds
Four peptide bonds
A proline residue
No C-Terminal correct answer: Five peptide bonds

Formally, when there are 100 or more amino acids covalently
linked together that is called a __________. correct answer:
Protein

What is used by biochemists to indicate the mass of a protein?
correct answer: kDa or Da

All of the 20 standard amino acids contain an R-group that is
attached to the: correct answer: Alpha Carbon

Which of the following correctly matches the amino acid with
its one letter abbreviation?

Glutamic acid, E
Isoleucine, S
Lysine, L
Phenylalanine, P
Arginine, A correct answer: Glutamic Acid, E or Aspartic Acid,
D

The order of amino acids in a protein is written_________.
correct answer: N to C-Terminus