Question

question 3 (1 point)
type of bond that holds amino acids together in a protein is called
a hydrogen bond
b nitrogen bond
c peptide bond
d covalent bond

Explanation:

Hydrogen bonds contribute to protein secondary structure but do not link amino acids directly. "Nitrogen Bond" is not a standard term for this role. A peptide bond is a specific type of covalent bond that forms between the carboxyl group of one amino acid and the amino group of another, creating the polypeptide chain of a protein. While peptide bonds are covalent, the question asks for the specific bond holding amino acids together in proteins, which is the peptide bond.

Answer:

c. peptide bond