Biochemistry Exam 2 Mastery Questions – 2025–2026

Biochemistry Exam 2 Mastery
Questions – 2025–2026



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, Biochem Exam 2
Question 1
monomer units of proteins
Correct Answer
Amino acids


Question 2
what is the only achiral amino acid
Correct Answer glycine


Question 3
Nonpolar aliphatic AAs
Correct Answer
Gly, Ala, Val, Leu, Ile


Question 4
Nonpolar AAs
Correct Answer
Pro, Met


Question 5
Nonpolar Aromatic AAs
Correct Answer
Phe, Tyr, Trp


Question 6
Polar AA
Correct Answer
Ser, Cys, Thr, Asn, Gln


Question 7
Positively charged polar AAs
Correct Answer
His, Lys, Arg


Question 8
Negatively charged polar AAs

, Correct Answer
Asp, Glu


Question 9
Pka of Tyr
Correct Answer
10.1


Question 10
Pka of Histidinium
Correct Answer 6.0


Question 11
Pka of Lys
Correct Answer
10.0


Question 12
Pka of Arg
Correct Answer
12.5


Question 13
Pka of Asp
Correct Answer 3.9


Question 14
Pka of Glu
Correct Answer 4.2


Question 15
Pka of Cys
Correct Answer 8.3


Question 16
4 methods of modification in AAs
Correct Answer
Phosphorylation, Acetylation, Methylation, 4-hydroxyproline


Question 17