8. Transport in Humans The graph shows the pressure changes in the aorta on the left side of the heart during one cardiac cycle. At which point does the bicuspid valve open and close? Open Close A W Z B X Y C Y Z D Z W ABCD2. The table shows the blood groups of four people and the type of blood is received in transfusion. Blood group under ABO system Blood type in a transfusion W A O X B AB Y AB O Z O AB Which two people are at risk from agglutination?W and YX and ZW and YY and Z3. Coronary heart disease is caused by partial occlusion ( blockage ) of the coronary arteries. Which blood flows does the reduce?Into the right ventricleTo the intercostal musclesTo the cardiac muscleAnd to the left atrium4. The diagram shows the pressure changes in the left side of the heart. What is the ratio of the timing of atrial systole to atrial diastole?0.1:.080.1:0.70.7:0.10.1:0.35. Which two changes in arteries would affect the blood pressure as stated? A circular muscle in the wall Lumen size effect in blood pressure A Contracts Decreases Increases B Contracts Increases Increases C Relaxes Decreases Decreases D Relaxes Increases Increases ABCD6. Which substance will pass from muscle cell into the capillary where the tissue fluid?Carbon dioxideGlycogenAdrenalineUrea7.The arrows on the diagram shows the direction of movement of some of the substance carried in plasma as the enter and leave a capillary. Which two factors cause water to re-enter the capillary the Venous end? Plasma water potential Blood pressure in the capillary A Decreases Decreases B Decreases Increases C Decreases Decreases D Increases Increases Which two factors cause water to re-enter the capillary at the Venous end?ABCD8. Which statement about the heart is not correct?The volume of blood passing through the right atrium equals the volume of blood passing through the right ventricle.The wall of the left atrium is thicker than the wall of the left ventricle. The volume of blood passing through the left atrium equal to the volume of blood pass into the left ventricle.The wall of the left ventricle is thicker than the wall of the right ventricle.9. The diagram represents part of the circulatory system. Which role name is the blood vessels correctly? Pulmonary artery Hepatic Hepatic vein A 1 3 4 B 1 4 3 C 2 6 5 D 6 2 5 ABCD10. The arrow on the diagram shows the direction of movement of some of the liquid in a capillary. What causes the changes in water potential between point X and Y?Blood pressure falls between X and YOxygen moves out of the capillary at the Arterial endPlasma protein stays in the capillaryBlood cells stay in the capillary11. During the cardiac cycle, what causes the flaps of the bicuspid valve to close?Contraction of the tendons attached to the valve flapsConstruction of the valve flapsThe pressure of blood as the left ventricle contractsA nervous impulse to the valve flaps12. The diagram represents the circulatory system. Which diagram is correct for an adult human?ABCD13. Both equations, Y and Z, show reactions that take place in red blood cells. Y - Hb +O2 <------> HbO2 Z - CO2 + H2O <------> H2CO3 ( Hb = Haemoglobin ) What is the factor that determines the speed and direction of the reactions?ABCD14. The diagram shows some tissue cells next to the capillary in the body of a human male. What is present in the tissue fluid formed from the plasma?Glucose and oxygenProgesterone and water ADH and hemoglobinGlucose and platelets 15. The diagram shows part of the human circulatory system. which blood vessels contain blood with the highest and lowest concentration of urea? The highest concentration of urea The lowest concentration of urea A 1 4 B 2 1 C 3 2 D 4 3 ABCD16. The graph shows changes in blood pressure as blood flow through the blood vessels of the human circulatory system. Which blood vessels, A, B, C, or D, contain the most elastic tissue in their walls?ABCD17. The diagram shows a group of alveoli and their blood supply. What describes the difference in competition between the blood at X and the blood at Y? The concentration of chemical in the blood at X compared to the blood at Y Carbon Dioxide Glucose Oxygen A less more less B less the same more C more more less D more the same more ABCD18. Which blood transfusion can be carried out safely? Blood type of donor blood type of recipient A A O B AB A C B A D O blood type of recipient ABCD19. What is transported in solution in the blood plasma of healthy person?Fibrin GlucagonGlycogen Carbonic anhydrase20. The diagram represents part of the human circulatory system, with some blood vessels identified by letters. The table shows a comparison of the carbon dioxide concentration in the identified blood vessels. number of comparisons higher carbon dioxide concentration lower carbon dioxide concentration 1 X W 2 X Y 3 Z X 4 Z V Which comparison of carbon dioxide concentration are correct?1, 3, and 4 only1,2,3 and 41 and 4 only2 and 3 only21. The diagram shows a capillary and some tissue cell. Which statement about the movement of substance is correct? Diffusion of chemical occurs at Y onlyTissue fluid passes into the capillary at ZDiffusion of chemicals occurs at W and YFluid passes out of the capillary at X22. The diagram shows red blood cells in a capillary near the wall of an alveolus. Which process explains how oxygen passes from the plasma into the red blood cells?Diffusion of dissolved oxygen from the plasma into the red blood cellsDiffusion of microscopic bubbles of oxygen from the plasma and the red blood cellsHigh blood pressure for setting the oxygen into the red blood cellsActive transport of oxygen by the red blood cells
