1.Which part of the blood carries glucose to the body's cells?(A) Red blood cell(B)leucocytes (C)Plasma(D)phagocytes2.Which part of the blood destroys pathogens?(A)Red blood cell(B)White blood cell (C)Plasma (D) water3.Arteries always carry (A)Oxygenated blood(B)Blood away from the heart(C)Blood towards the heart (D) Blood towards and away from the heart

4. Which type of blood vessel contains valves?(A)Artery(B)Capillary(C)Vein(D)Arterioles

5.Which of these three produces the highest blood pressure?(A)Right atrium (B)Left atrium(C)Right ventricle(D)Left Ventricles

6.When the skin is cut the blood forms clots. In which order would the components of the blood become involved?

7. What is the correct route for blood flow in a human?(A) left atrium left ventricle lungs right ventricle right atrium(B) left atrium left ventricle right ventricle right atrium lungs(C) right atrium right ventricle left ventricle left atrium lungs(D) right atrium right ventricle lungs left atrium left ventricle

8. After muscular exercise, which blood vessel carries the most carbon dioxide?A aortaB hepatic arteryC pulmonary veinD vena cava

9.The diagram shows a section through the heart.

While chambers X and Y are emptying of blood, which valves are open and which are closed?

10. The diagram represents blood flow through the human body.

At which stages does the blood contain the most oxygen?A 1 and 2 B 2 and 3 C 3 and 4 D 4 and 1

11.The diagram represents part of the human circulatory system.

Where is the blood pressure highest?

12.The graph shows pressure changes in the left ventricle and the left atrium (auricle) in one cycle of contraction of the heart.

During which period of time is the ventricle contracting?

13.In the human body, blood circulating from the gut to the heart passes through theA aorta.B kidneys.C liver.D lungs.

14.A vein has a wider lumen than an artery.What is the advantage of this?A bringing blood into close contact with the tissuesB offering less resistance to blood flowC preventing back flow of bloodD resisting high blood pressure from the heart

15.The diagram represents a blood capillary with an adjacent cell. The arrows represent the transferof substances between the capillary and the cell.

Which arrows represent glucose, carbon dioxide and oxygen?

16.Which sequence shows the shortest route taken by blood travelling from a leg to an arm in thehuman body?A leg heart lungs heart armB leg heart lungs kidney armC leg kidney heart lungs armD leg lungs heart alimentary canal arm

17. The diagram shows a section through part of a vein.

What could be the first organs found in the directions 1 and 2?