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- 1. Multiple Choice
Which of the following is not a reason to develop a transport system?
Large surface area to volume ratio
Small surface area to volume ratio
The organism is large
The organism has a high metabolic rate
- 2. Multiple Choice
If a cube measures 2cm x 2cm x 2cm, what is its SA:VOL?
6:1
3:1
2:1
1.5:1
- 3. Multiple Choice
If the surface area to volume ratio of an organism decreases, why does this influence their need for a transport system and/or exchange surface?
The diffusion distance becomes smaller
Diffusion is not adequate to meet their needs
Oxygen supply can meet demand
Wastes can be removed efficiently
- 4. Multiple Choice
Why would a large mammal require a circulatory system whilst an amoeba (single cell) would not?
Mammals are mpre metabolically active
Mammals are larger
Mammals have a smaller SA:VOL
Mammals have a larger SA:VOL
- 5. Multiple Choice
Which of the following statements is true?
In an open circulatory system blood is contained in vessels
In an open circulatory system blood is not in vessels
In closed circulatory system blood circulates freely through the body cavity
- 6. Multiple Choice
Which of the following is NOT a reason a locust can survive with an open circulatory system?
The blood doesn't have to travel far as they are small
They don't rely on blood to transport oxygen
Their SA:VOL is large so they can rely on diffusion alone
They have a separate tracheole system to deliver air into respiratory organs
- 7. Multiple Choice
Fish have a closed circulatory system. Which of the following statements is incorrect?
They are larger so cannot rely of diffusion alone
Their blood flows at lower pressure and more slowly but this is sufficient to meet their needs
Keeping the blood inside vessels means it is kept at a higher pressure
They have a heart which pumps blood to maintain pressure
- 8. Multiple Choice
Humans have a double circulatory system. Which of the following are correct?
The circuit that supplies the lungs is called the pulmonary circuit
The circuit that supplies the lungs is called the systemic circuit
The circuit that supplies the body is called the pulmonary circuit
The circuit that supplies the body is called the systemic circuit
- 9. Multiple Choice
Which of these is not an advantage of a double circulatory system?
Blood pressure is reduced so cells aren't damaged
Blood pressure is increased by the heart after the pulmonary circuit
Blood flows more quickly to body tissues
Some blood is oxygenated at the same other oxygenated blood is delivered to cells
- 10. Multiple Choice
Which number is the right ventricle?
1
2
3
8
- 11. Multiple ChoiceWhich number is the pulmonary artery?4568
- 12. Multiple ChoiceWhere is the blood in 3 coming from?All over the bodyThe upper half of the body, head and armsThe lower half of the body, legs and abdomenThe lungs
- 13. Multiple ChoiceThe two chambers of the heart which receive blood are known as the _________atriaventriclessystemicspulmonic
- 14. Multiple ChoiceBlood leaves the right ventricle through the ___________.pulmonary arteryaortasuperior vena cavaright atrium
- 15. Multiple Choice
Which vessel carries the oxygenated blood from the lungs to the left atrium of the heart?
vena cava
aorta
pulmonary vein
pulmonary artery
- 16. Multiple ChoiceWhich letters carry deoxygenated blood?A, B, DG, AA, DB, C, D
- 17. Multiple Choice
Which vessels have narrow lumens compared to the thickness of their walls?
arteries
capillaries
veins
- 18. Multiple Choice
Which vessels contain valves?
arteries
capillaries
veins
Lymphatic capillaries
Lymphatic capillaries
- 19. Multiple Choice
Which one correctly describes a vein?
Low blood pressure, large lumen, valves present
Low blood pressure, small lumen, valves present
Low blood pressure, small lumen, valves absent
High blood pressure, large lumen, valves absent
- 20. Multiple Choice
Which one is not transported in the blood plasma
Heat
Glucose
Hormones
Oxygen
- 21. Multiple Choice
Which blood vessel carries oxygenated blood at the highest pressure?
Vena cava
Aorta
Pulmonary artery
Coronary artery
- 22. Multiple Choice
Which circulatory system contains blood at a higher pressure?
Systemic
Pulmonary
Coronary
- 23. Multiple Choice
Where is the natural pacemaker found in the heart?
In the wall of the left atrium
In the septum
In the wall of the right atrium
In the wall of the left atrium
- 24. Multiple Choice
In which layer would muscle tissue and elastic fibres be located?
A
B
C
D
- 25. Multiple Choice
Which layer is the lumen?
A
B
C
D
- 26. Multiple Choice
Which layer is the endothelium?
A
B
C
D
- 27. Multiple Choice
What can be defined as 'fluid derived from plasma that passes through capillary walls'?
Blood
Plasma
Tissue fluid
Lymph
- 28. Multiple Choice
What is happening at A?
AV valves open
AV valves close
SL valves open
SL valves close
- 29. Multiple Choice
What is happening at A?
Atrial diastole
Atrial systole
Ventricular systole
Ventricular diastole
- 30. Multiple Choice
What is happening at A?
AV Valves open
AV Valves close
SL Valves open
SL valves close
- 31. Multiple Choice
Where is the heartbeat initiated?
Right atrium
Vena cava
Right ventricle
Septum
- 32. Multiple Choice
Which of the following is correct for the pulmonary vein?
Carries oxygenated blood, thick muscle in wall, and small lumen size relative to diameter
Carries deoxygenated blood, thin muscle in wall, and large lumen size relative to diameter
Carries deoxygenated blood, thick muscle in wall, and small lumen size relative to diameter
Carries oxygenated blood, thin muscle in wall, and large lumen size relative to diameter
- 33. Multiple Choice
Where are the purkyne fibres located?
Outer wall of LV
Outer wall of RV
Septum
Wall of RA
- 34. Multiple Choice
Which statement is incorrect?
Tissue fluid is formed at the arteriole end of capillaries where hydrostatic pressure in capillaries is higher than tissue fluid
Tissue fluid does not contain RBC, large plasma proteins or glucose
Water re-enters the capillary from tissue fluid at the venous end by osmosis
There is a lower hydrostatic pressure inside a capillary at the venule end compared to the arteriole end
- 35. Multiple Choice
If the aorta has a width of 2cm, which of the following widths is also correct?
2,000,000nm
- 36. Multiple Choice
When carbon dioxide is transported in the blood, the majority of it is transported as:
Hydrogen carbonate ions
Carbonic acid
Carbonic anhydrase
Protons
- 37. Multiple Choice
When carbon dioxide combines with haemoglobin what is formed?
Carbonic acid
Hydrogen carbonate ions
Carbaminohaemoglobin
Oxyhaemoglobin
- 38. Multiple Choice
Which of the following statements regarding myoglobin is incorrect?
It is a single polypeptide chains
It has a higher affinity for oxygen than haemoglobin
It contains more haem groups than haemoglobin
It can become saturated with oxygen at lower partial pressures of oxygen than haemoglobin
- 39. Multiple Choice
Which of the following statements regarding the Bohr shift is incorrect?
It shifts the oxygen dissociation curve to the right
It occurs due to an increase in pH
It allows more oxygen to be released from haemoglobin
It allows aerobic respiration to continue
- 40. Multiple Choice
Which of the following types of haemoglobin would be to the left of the dissociation curve for adult humans?
Foetal haemoglobin
Lugworm haemoglobin
Mouse haemoglobin
Bird haemoglobin
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