Lesson 1.2.2
1.2.2 Blood clotting and its role in CVD Quiz: Pearson Edexcel Biology, Unit 1
20 questions
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Lesson 1.2.2, Blood clotting and its role in CVD: 20 multiple choice questions for the Pearson Edexcel Biology (9BI0), Unit 1: Lifestyle, Health and Risk, written with Revision Ninja.
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The 20 questions
-
What enzyme conversion is directly catalysed by thromboplastin during blood clotting?
- Prothrombin to fibrin
- Fibrinogen to fibrin
- Fibrin to prothrombin
- Prothrombin to thrombin
-
Which enzyme converts fibrinogen into fibrin?
- Plasmin
- Thrombin
- Prothrombin
- Thromboplastin
-
What insoluble protein mesh is produced at the end of the blood clotting cascade?
- Fibrinogen
- Fibrin
- Prothrombin
- Thromboplastin
-
Which protein exposed by damaged blood vessel walls triggers platelet adhesion?
- Keratin
- Collagen
- Elastin
- Myosin
-
What is the primary function of the fibrin mesh during blood clot formation?
- Digests collagen
- Dissolves platelets
- Traps blood cells
- Secretes thromboplastin
-
What condition can be caused by a blood clot blocking a coronary artery?
- Stroke
- Pulmonary embolism
- Myocardial infarction
- Deep vein thrombosis
-
Which type of drug is used to reduce blood clot formation?
- Antihypertensive
- Statin
- Anticoagulant
- Diuretic
-
What is the role of calcium ions in the blood clotting cascade?
- Enzyme cofactors
- Structural proteins
- Enzyme inhibitors
- Primary substrates
-
Which process is directly inhibited by drugs that target thrombin?
- Thromboplastin release
- Prothrombin production
- Fibrinogen conversion
- Platelet production
-
What protein exposed by endothelial damage triggers blood platelet activation?
- Keratin
- Collagen
- Fibrinogen
- Elastin
-
What is the medical term for a blood clot inside a blood vessel?
- Thrombus
- Atheroma
- Embolus
- Aneurysm
-
What enzyme converts prothrombin into thrombin during blood clotting?
- Protease
- Amylase
- Thromboplastin
- Fibrinogen
-
Haemophilia is primarily caused by a deficiency of which substance?
- Antibodies
- Red blood cells
- Clotting factors
- Blood platelets
-
What structure ruptures in an artery to trigger blood clot formation?
- Endothelial cell
- Fibrous cap
- Atherosclerotic plaque
- Elastic lamina
-
What is the soluble substrate converted into insoluble fibrin by thrombin?
- Thromboplastin
- Prothrombin
- Fibrinogen
- Collagen
-
How does aspirin help to prevent cardiovascular disease?
- Reduces cholesterol production
- Dissolves existing clots
- Inhibits platelet aggregation
- Lowers blood pressure
-
What is the main side effect associated with taking anticoagulant medication?
- Excessive bleeding
- High blood pressure
- Increased cholesterol
- Blood clot formation
-
What effect does removing calcium ions have on blood clotting?
- Accelerates clot formation
- Increases fibrin production
- Prevents clot formation
- Promotes platelet activation
-
Which protein formed during blood clotting is insoluble and forms a mesh?
- Fibrinogen
- Thrombin
- Prothrombin
- Fibrin
-
What inactive precursor protein is converted into active thrombin during clotting?
- Collagen
- Prothrombin
- Fibrinogen
- Thromboplastin
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