BIOCHEM 409 FINAL EXAM REVIEW
QUESTIONS AND ANSWERS.
In Edman's degredation, phenylisothiosyanate reacts with: - Answer the alpha-amino group
of the amino-terminal residue of the protein
If the following polypeptide were folded into an alpha-helix, to which amino acid's carbonyl
oxygen would the amide hydrogen of glutamine be hydrogen bonded?
Trp-Asp-Tyr-Ile-Gln-His-Cys-Ala-Thr - Answer Tryptophan
If heat is released by a spontaneous chemical reaction, then the reaction is said to be: - Answer
Exothermic and Exergonic
Properties of water? - Answer -angular geometry
which amino acid is most likely to be found on the surface of a globular protein? - Answer
Asparagine
which of the following interactions is the strongest?
a. disulfide bond
b. dipole-dipole interaction
c. hydrogen bond
d. london dispersion forces
e. electrostatic interaction - Answer disulfide bond
which is the weakest?
a. disulfide bond
b. dipole-dipole interaction
c. hydrogen bond
d. london dispersion forces
e. electrostatic interaction - Answer london dispersion forces
A protein has the following amino acid sequence -G-P-G-S- within it. This sequence is most likely
part of: - Answer Beta-turn
Which of the following statements about globular proteins are NOT TRUE
QUESTIONS AND ANSWERS.
In Edman's degredation, phenylisothiosyanate reacts with: - Answer the alpha-amino group
of the amino-terminal residue of the protein
If the following polypeptide were folded into an alpha-helix, to which amino acid's carbonyl
oxygen would the amide hydrogen of glutamine be hydrogen bonded?
Trp-Asp-Tyr-Ile-Gln-His-Cys-Ala-Thr - Answer Tryptophan
If heat is released by a spontaneous chemical reaction, then the reaction is said to be: - Answer
Exothermic and Exergonic
Properties of water? - Answer -angular geometry
which amino acid is most likely to be found on the surface of a globular protein? - Answer
Asparagine
which of the following interactions is the strongest?
a. disulfide bond
b. dipole-dipole interaction
c. hydrogen bond
d. london dispersion forces
e. electrostatic interaction - Answer disulfide bond
which is the weakest?
a. disulfide bond
b. dipole-dipole interaction
c. hydrogen bond
d. london dispersion forces
e. electrostatic interaction - Answer london dispersion forces
A protein has the following amino acid sequence -G-P-G-S- within it. This sequence is most likely
part of: - Answer Beta-turn
Which of the following statements about globular proteins are NOT TRUE
