Which parts of the blood help it to clot when the skin is cut?
Answer and explanation
Correct answer: B. The platelets
- Step 1: Platelets are cell fragments that gather at a wound and start the chain of reactions that forms a clot. Answer: The platelets. Why not the others: Red blood cells carry oxygen, white blood cells fight infection, and plasma is the liquid that carries the cells, dissolved food and wastes; it contains clotting proteins but does not start the clot.
Practise more Further Science Questions.
Free questions with an explanation for every one, and full timed Iraqi Third Intermediate Ministerial Exams mock tests.