Zadanie 3e
Describe the contribution of enzymes to one named human defence process that prevents infection.
- Materiał graficzny
Clot formation after tissue damage
Trace platelet involvement and the conversion of fibrinogen to fibrin in formation of a protective blood clot.
Tę umiejętność sprawdza 5 zadań wzorowanych na arkuszach IB z lat 2022–2025.
Zadania sprawdzające tę umiejętność: 5 Otwórz w wyszukiwarce z filtrami
Zadanie 23
What structural event helps convert blood at a wound into a clot? A. Platelets transform directly into collagen fibres B. A fibrin network retains blood cells C. Soluble fibrinogen forms a stable mesh without conversion to fibrin D. Fibrin dissolves the…
Zadanie 21
Which sequence is consistent with clot formation after vessel damage? A. Platelets release antibodies that become red cells B. Fibrin is converted into all circulating plasma proteins C. Clotting factors trigger reactions that generate a fibrin network sealing…
Zadanie 22
What is a role of fibrin in forming a blood clot? A. It converts all platelets into red blood cells B. It forms an insoluble network retaining cells and platelets C. It dissolves the injured vessel wall D. It acts as a hormone that raises blood glucose
Zadanie 25
A blood-feeding organism secretes a molecule that blocks thrombin activity. Which step is directly inhibited? A. Formation of fibrin from fibrinogen B. Formation of all erythrocytes in bone marrow C. Synthesis of haemoglobin from fibrin D. Production of…