At the pH of most bodily fluids,which functional group will lose a proton and which functional group will accept a proton?
A)sulfhydryl; carbonyl
B)Hydroxyl; amino
C)amino; carboxyl
D)carboxyl; amino
E)carbonyl; Hydroxyl

Question

Quizplus · Accepted Answer

At the pH of most bodily fluids (~7.4), the carboxyl group (-COOH) will lose a proton and become negatively charged (-COO-), while the amino group (-NH2) will accept a proton and become positively charged (-NH3+). This is the basis of the formation of peptide bonds between amino acids in proteins, where the carboxyl group of one amino acid reacts with the amino group of another amino acid, releasing a water molecule in the process.

At the PH of Most Bodily Fluids,which Functional Group Will