BIOCHEMISTRY C 785 READINESS CHECK 1B ACTUAL EXAM SCRIPT 2026 FULL SOLUTION VERIFIED

BIOCHEMISTRY C 785 READINESS CHECK 1B
ACTUAL EXAM SCRIPT 2026 FULL SOLUTION
VERIFIED

◉ Glutamate (Glu/E) Answer: Negatively charged R groups


◉ What is the maximum number of hydrogen bonds that water can
form? Answer: 4


◉ The strongest hydrogen bonds have angles of ________. Answer: 180
degrees


◉ The spontaneous clustering of lipids is driven by an energetically
favorable increase in the _______ of water. Answer: Entropy


◉ Phosphoric acid has a pKa of 2.1. At what pH will 75% of
phosphoric acid be in the conjugate base form?


math hints: log 3 = 0.5 and log 0.33 = -0.5 Answer: 2.6


◉ All of the amino acids are chiral except: Answer: Glycine

, ◉ Which amino acids are negatively charged at a neutral pH?
Answer: Glutamate, aspartate


◉ The pKa values of most carboxylic acid groups is about _____. At pH
7, the majority of these groups will have a ________ charge. Answer:
about 2
negative


◉ The pKa values of most amino groups is about _____. Above pH 9,
the majority of these groups will have a ________ charge. Answer:
about 9
neutral


◉ What amino acids have positive ionizable groups? Answer: Lysine,
Arginine, Histidine


◉ What amino acids have negative ionizable groups? Answer:
Aspartate, Glutamate


◉ What amino acids are nonpolar? Answer: Leucine, Isoleucine,
Methionine, Proline, Phenylalanine, Valine, Alanine, Glycine


◉ What amino acids are aromatic? Answer: Phenylalanine, Tyrosine,
Tryptophan