BIOCHEMISTRY MODULE 3 EXAM QUESTIONS AND ANSWERS WITH SOLUTIONS 2024

BIOCHEMISTRY MODULE 3 EXAM
QUESTIONS AND ANSWERS WITH
SOLUTIONS 2024
True or False: The amino acids lysine and arginine both contain sulfur atoms. - ANSWER False



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



True or False. The side chain of histidine is bonded to the backbone nitrogen atom. - ANSWER False



True or False: The name of the molecule that binds to an enzyme is called the ligand. - ANSWER False



True or False: An inhibitor that binds at the active site is a coenzyme. - ANSWER False



Which amino acids both have an R group (side chain) with an -OH functional group? - ANSWER Ser and
Thr



The formation of a peptide bond between two amino acids is an example of a(n) _____ reaction. -
ANSWER Condensation



The peptide Ala-Glu-Gly-Ala-Leu has ______ . - ANSWER Four peptide bonds



Formally, when there are 100 or more amino acids are covalently linked together that is called a
_________. - ANSWER Protein



What unit is used by biochemists to indicate the mass of a protein? - ANSWER Da



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

A) α carbon

B) Carboxyl group