Chapter 4 Practice Paper: The heart, blood vessels and blood — question paper

Section A: Multiple-choice questions[10 marks]

Choose one answer for each question. Each question is worth 1 mark.

1. 1

   Which vessel carries deoxygenated blood away from the heart?

   1. Aaorta
   2. Bpulmonary vein
   3. Cpulmonary artery
   4. Dvena cava
   ( )
2. 2

   Haemoglobin is found in

   1. Ared blood cells
   2. Bwhite blood cells
   3. Cplatelets
   4. Dplasma
   ( )
3. 3

   Valves that stop blood flowing backwards are found in

   1. Aarteries
   2. Bcapillaries
   3. Cthe aorta
   4. Dveins
   ( )
4. 4

   Which vessels supply the heart muscle with blood?

   1. Aaorta
   2. Bcoronary arteries
   3. Cvena cava
   4. Dpulmonary veins
   ( )
5. 5

   The biconcave shape of a red blood cell helps it to

   1. Amake antibodies
   2. Bstore fat
   3. Cexchange oxygen quickly over a large surface
   4. Dproduce clots
   ( )
6. 6

   Which blood component is a cell fragment rather than a whole cell?

   1. Aplatelets
   2. Bred blood cells
   3. Cwhite blood cells
   4. Dplasma
   ( )
7. 7

   A heart pumps 80 cm³ per beat at 60 beats per minute. Its output is

   1. A140 cm³ per minute
   2. B480 cm³ per minute
   3. C6 000 cm³ per minute
   4. D4 800 cm³ per minute
   ( )
8. 8

   Statins reduce the risk of coronary heart disease by

   1. Aholding arteries open mechanically
   2. Blowering blood cholesterol
   3. Creplacing faulty valves
   4. Dkilling pathogens
   ( )
9. 9

   An artificial heart is most often used to

   1. Areplace the lungs
   2. Bfilter the blood
   3. Ckeep a patient alive while waiting for a transplant
   4. Dlower cholesterol
   ( )
10. 10

    Blood returning from the body’s tissues enters the heart through the

    1. Avena cava
    2. Bpulmonary vein
    3. Cpulmonary artery
    4. Dcoronary artery
    ( )

Section B: Structured questions[20 marks]

Answer all questions in the spaces provided.

1. 11

   The table shows the flow of blood through four vessels.

   Vessel data

   Vessel	Oxygen content	Wall thickness
   P	Low	Thick
   Q	High	One cell thick
   R	High	Thick
   S	Low	One cell thick

   1. (a)

      Identify which vessel is most likely to be the aorta. Give a reason.

      [1]
   2. (b)

      Identify which vessel is most likely to be a capillary in the lungs. Give a reason.

      [1]
   3. (c)

      Explain why vessel P has a thick wall.

      [2]
   4. (d)

      Name the vessel type that vessel Q’s wall design makes it.

      [2]
2. 12

   This question is about the components of blood.

   1. (a)

      Name the liquid that suspends the blood cells.

      [1]
   2. (b)

      State two substances transported in this liquid.

      [2]
   3. (c)

      Explain why the loss of a platelet-producing condition would be dangerous.

      [2]
3. 13

   A patient’s coronary artery has become narrowed by fatty material.

   1. (a)

      Name the disease and explain why it can cause chest pain.

      [3]
   2. (b)

      Describe how a stent treats this problem and state one risk of the procedure.

      [2]
4. 14

   The table shows a heart’s output at rest and during gentle exercise.

   Cardiac output

   Condition	Volume per beat	Beats per minute
   Rest	70 cm³	70
   Exercise	100 cm³	105

   1. (a)

      Calculate the output at rest, in cm³ per minute.

      [1]
   2. (b)

      Calculate the output during exercise, in cm³ per minute.

      [1]
   3. (c)

      State why the increase is useful during exercise.

      [2]