Multiple choice

Antibodies are

  1. bacteria

  2. viruses

  3. proteins

  4. fats
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

An antibody (Ab), also known as an immunoglobulin (Ig), is a large Y-shaped protein, produced mainly by plasma cells that is used by the immune system to identify and neutralize pathogens such as bacteria and viruses. They are proteinaceous in nature.

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