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Proteins are polymers of which of the following molecules?
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1. Introduction to Biochemistry
Proteins
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In human digestion, the enzyme pepsin primarily digests which type of biomolecule in the stomach?
A
Proteins (polypeptides) by hydrolyzing peptide bonds
B
DNA by cleaving phosphodiester bonds
C
Starch by hydrolyzing glycosidic bonds
D
Triacylglycerols by hydrolyzing ester bonds
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Identify the role of pepsin in human digestion, which is an enzyme active in the stomach.
Recall that pepsin is a protease, meaning it specifically targets proteins rather than carbohydrates, lipids, or nucleic acids.
Understand that pepsin catalyzes the hydrolysis of peptide bonds, which link amino acids together in polypeptides (proteins).
Recognize that other biomolecules such as DNA, starch, and triacylglycerols are digested by different enzymes: DNA by nucleases, starch by amylases, and triacylglycerols by lipases.
Conclude that pepsin primarily digests proteins (polypeptides) by hydrolyzing their peptide bonds in the acidic environment of the stomach.
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