Multiple choice

Insulin and glucagon are ______.

  1. polypeptides

  2. polysaccharides

  3. polynucleotides

  4. none of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Insulin and glucagon are protein hormones composed of amino acid chains, making them polypeptides. Insulin has two polypeptide chains; glucagon is a single chain. They are not carbohydrates (polysaccharides) or nucleic acids (polynucleotides). Option A correctly classifies them.

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