Multiple choice

The anticoagulant in the saliva of leeches, which prevents coagulation of blood, is called

  1. Enterokinase

  2. Ptyalin

  3. Hirudin

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

Hirudin is a potent anticoagulant protein produced in the salivary glands of leeches (Hirudo medicinalis). It prevents blood clotting by inhibiting thrombin, allowing leeches to feed on blood without it coagulating. Hirudin has medical applications in treating blood clots.

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