Transport in Mammals
1. A patient inhales a drug.
Which chamber of the patient’s heart would be the first to receive blood containing the drug?
Answer is A
2. Which table shows vessels carrying blood to and from the heart, liver and lungs?
Answer is C
3. The diagram shows a valve in a section through a blood vessel.
Which statement is correct?
Answer is B
A Blood flows from X to Y, opening the valve.
B Muscles in the wall contract and close the valve, preventing backflow.
C The elastic wall causes the valve to close between heartbeats.
D The valve is forced open when the blood pressure at Y is greater than at X.
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4. 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
Answer is D
C right atrium → right ventricle → left ventricle → left atrium → lungs
D right atrium → right ventricle → lungs → left atrium → left ventricle
5. The diagram represents blood flow through the human body.
Answer is c
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
6. The diagram shows the liver and its blood supply.
What is the name of blood vessel X and which substance increases in concentration between vessels W and X?
Answer is B
7. The table shows substances passing between capillaries and tissues in a part of the body.
In which part of the body are these capillaries? Answer is B
A between the alveoli
B in the kidney
C in the liver
D in the villi
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8. Which statement explains why humans are said to have a double circulation?
A As blood circulates it passes twice through the heart.
B Each side of the heart has two chambers.
C Each side of the heart has two valves.
Answer is A
D There are two different sets of arteries leaving the heart.
9. Which chambers of the human heart contain oxygenated blood?
A left atrium and left ventricle
B left atrium and right ventricle
C right atrium and left ventricle Answer is A
D right atrium and right ventricle
10. What causes the transfer of materials between capillaries and tissue fluid?
A active transport
B blood pressure Answer is B
C capillarity
D osmosis
11. The diagram represents part of the human circulatory system. Where is the blood pressure highest?
Answer is B
12. How do veins differ from arteries?
Answer is D
13. The table shows the characteristics of the blood in one blood vessel in the body.
Which blood vessel contains blood with these characteristics?
A aorta Answer is A
B pulmonary artery
C pulmonary vein
D vena cava
