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CAIE IGCSE Biology 9.4.1 Components of Blood Questions

Practise naming plasma, red blood cells, white blood cells and platelets from descriptions and diagrams.

Syllabus
2026–2028
Course
Biology 0610

Exam points

  • List red blood cells, white blood cells, platelets and plasma as the components of blood.

CAIE IGCSE Biology 9.4.1 Components of Blood Questions question 1

[Maximum number: 1]

Tissue plasminogen activators (TPAs) are human proteins that are used as drugs to break down blood clots.

TPAs break down blood clots by activating plasminogen. Plasminogen is a protein that is always present in the blood.

When activated, plasminogen forms a protease that breaks down fibrin molecules.

Plasminogen is found in the plasma.

State what is meant by the term plasma.

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