Multiple choice

The anticoagulant of fresh water leech is

  1. hirudin

  2. heparin

  3. sodium citrate

  4. chelating agent
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Hirudin is the specific anticoagulant produced by medicinal leeches (Hirudo medicinalis) to prevent blood clotting while they feed. Heparin is produced by mast cells and basophils in mammals, not leeches. Sodium citrate is an artificial anticoagulant used in laboratory settings, not a natural leech product.

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