Multiple choice

Which of the following proteins is a protease inhibitor controlling blood clotting in mammals?

  1. Tissue plasminogen activator

  2. Plasmin

  3. Antithrombin

  4. Thrombin

  5. Niacin

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Blood clotting is potentially dangerous and an elaborate system of safeguards exists to control the process.