Multiple choice

Antibody is formed by:

  1. protein

  2. carbohydrate

  3. nucleic acid

  4. lipid

  5. vitamin
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Antibodies are glycoprotein molecules called immunoglobulins produced by plasma cells. They are composed of amino acid chains arranged in a characteristic Y-shape that specifically bind to antigens.

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