Lesson 1.1.2
1.1.2 Structure and function of blood vessels Quiz: Pearson Edexcel Biology, Unit 1
20 questions
In partnership with Revision Ninja
Lesson 1.1.2, Structure and function of blood vessels: 20 multiple choice questions for the Pearson Edexcel Biology (9BI0), Unit 1: Lifestyle, Health and Risk, written with Revision Ninja.
Host it live on the board and students join with a game code on their own devices, or revise alone with Free Play. The answers are revealed in the game.
The 20 questions
-
Which type of blood vessel has walls consisting of a single layer of endothelial cells?
- Capillary
- Vein
- Arteriole
- Artery
-
What is the main function of elastic tissue in the wall of a large artery?
- Maintains blood pressure
- Constricts the lumen
- Allows gas exchange
- Prevents backflow
-
Compared to an artery of similar size, how is the lumen of a vein described?
- More muscular
- Wider
- Thicker
- Narrower
-
What is the main function of valves in veins?
- Reduce friction
- Prevent backflow
- Promote elastic recoil
- Increase pressure
-
Which tissue in arteriole walls contracts to regulate blood flow into capillary beds?
- Elastic tissue
- Collagen fibres
- Smooth muscle
- Endothelium
-
In which type of blood vessel is the velocity of blood flow lowest?
- Capillaries
- Arteries
- Arterioles
- Veins
-
A blood pressure reading in a large artery shows the systolic pressure is 120 mmHg and the diastolic pressure is 80 mmHg. What is the pulse pressure?
- 20 mmHg
- 200 mmHg
- 40 mmHg
- 100 mmHg
-
Which structural feature of a capillary bed maximises the rate of exchange?
- High blood pressure
- Large surface area
- Wide lumen diameter
- Thick elastic layer
-
Which action of arterial walls maintains blood pressure and continuous flow during diastole?
- Muscle contraction
- Valvular closure
- Endothelial sliding
- Elastic recoil
-
Which structural feature is present in arteries to withstand high blood pressure?
- Wide lumen
- Thick muscular wall
- Single endothelial layer
- Valves
-
Why is the wall of the aorta thicker than the wall of the pulmonary artery?
- Lower blood pressure
- Higher blood pressure
- Slower blood flow
- Greater total volume
-
Why does blood velocity decrease as blood enters the capillary network from arterioles?
- Increased pressure
- Thicker vessel walls
- Decreased total area
- Increased total area
-
Into which fluid do glucose and oxygen directly diffuse from capillaries?
- Tissue fluid
- Blood plasma
- Lymph
- Cytoplasm
-
Which feature prevents the backflow of blood in veins?
- Elastic recoil
- Valves
- Thick muscle
- Narrow lumen
-
Why is slow blood flow in capillary beds beneficial for exchange?
- Prevents backflow
- Increases blood pressure
- Stimulates elastic recoil
- Allows more diffusion
-
A student measures the wall thickness of an artery as 1.0 mm and the internal diameter of its lumen as 4.0 mm. What is the ratio of wall thickness to lumen diameter?
- 4:1
- 1:2
- 1:1
- 1:4
-
Which tissue layer in arterioles contracts to restrict blood flow to specific tissues?
- Endothelium
- Smooth muscle
- Collagen layer
- Elastic tissue
-
What process occurs in arterioles supplying skeletal muscle during exercise to increase blood flow?
- Atrial systole
- Vasodilation
- Vasoconstriction
- Elastic recoil
-
What primary factor causes blood pressure to fall as blood enters arterioles and capillaries?
- Friction and resistance
- Valve closure
- Elastic recoil
- Heart relaxation
-
A student measures the blood flow velocity in the aorta as 30 cm/s and the cross-sectional area of the aorta as 4.0 cm^2. What is the volume flow rate?
- 34 cm^3/s
- 120 cm^3/s
- 0.13 cm^3/s
- 7.5 cm^3/s
Related quizzes
- Why animals need a circulation and the role of water Quiz · 1.1.1 · 20 questions
- Structure and operation of the mammalian heart Quiz · 1.1.3 · 20 questions
- Atherosclerosis and its course of events Quiz · 1.2.1 · 20 questions
- Blood clotting and its role in CVD Quiz · 1.2.2 · 20 questions
- Risk factors for cardiovascular disease Quiz · 1.2.3 · 20 questions
- Interpreting illness and mortality data Quiz · 1.3.1 · 20 questions
- Evaluating studies of health risk factors Quiz · 1.3.2 · 20 questions
- Perceptions of risk and energy balance Quiz · 1.3.3 · 20 questions
- Monosaccharides, disaccharides and polysaccharides Quiz · 1.4.1 · 20 questions
- Glycosidic bonds, hydrolysis and energy storage Quiz · 1.4.2 · 20 questions