Zadanie 5b
Explain how platelets help prevent pathogens entering through a skin wound.
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 7 zadań wzorowanych na arkuszach IB z lat 2022–2024.
Zadania sprawdzające tę umiejętność: 7 Otwórz w wyszukiwarce z filtrami
Zadanie 27
Which sequence correctly summarizes the clotting response to a damaged blood vessel? A. Thrombin → destruction of all platelets → fibrin converted to fibrinogen B. Fibrin formation → removal of clotting factors → platelet activation C. Fibrinogen → haemoglobin…
Zadanie 28
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 26
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 28
Which scheme correctly shows the role of thrombin in forming a blood clot? A vertical arrow ending on a reaction arrow indicates catalysis. A. Scheme A B. Scheme B C. Scheme C D. Scheme D
- Materiał graficzny
Zadanie 6
Plant energy capture and animal cell functions support life. (a) Outline reasons for using stem cells therapeutically. (b) Describe how leaf cells use light energy. (c) Explain how cells and cell components in blood protect against infectious disease.
Zadanie 6
Haemophilia can result from inadequate activity of a blood-clotting protein. (a) Outline how translation produces a polypeptide in a cell. (b) A woman carrying the usual X-linked recessive haemophilia allele has children with a man without that allele.…