Multiple choice

Oxytocin is a _____.

  1. large peptide

  2. small peptide

  3. fatty acid residue

  4. sugar molecule

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Oxytocin is a small peptide hormone composed of 9 amino acids. It is not a large peptide, fatty acid, or sugar molecule. Peptide hormones are classified by their amino acid chain length.