Download Blood clotting: biology homework revision questions

8. Blood Clotting
1.
(a)
The diagram below summarises some of the steps involved in blood clotting. Complete
the diagram by writing in the missing words in the boxes.
Thromboplastin released by damaged cells and
Thrombin
Fibrin
(3)
(b)
Describe the possible effects of a blood clot forming in a coronary artery.
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(3)
(c)
Name one drug that helps to prevent clotting.
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(1)
(Total 7 marks)
2.
Complete the paragraph below which summarises the blood clotting process.
............................................. are cell fragments that stick to a site of damaged tissue.
............................................. is released from this area, which results in a plasma
protein called ............................................. being converted to thrombin. Thrombin
acts as an enzyme and catalyses the conversion of the soluble plasma
protein ............................................. into long, insoluble strands of the
protein .............................................. These strands form a mesh that
traps ............................................. to form a blood clot.
(Total 3 marks)
AS Unit 1: Lifestyle, Transport, Genes and Health: Topic 1: Lifestyle health and Risk
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