Biochemistry
Metabolic pathways, enzymes, proteins
Showing 71–72 of 72 questions
The primary structure of a protein is stabilized by which type of bond?
Correct Answer:
B. Peptide bonds
EXPLANATION
Peptide bonds between the carboxyl group of one amino acid and the amino group of the next maintain the primary structure.
Which of the following amino acids is NOT classified as a standard protein amino acid?
Correct Answer:
A. Selenocysteine
EXPLANATION
Selenocysteine is the 21st amino acid and is not among the standard 20 protein amino acids. It contains selenium instead of sulfur.