GCSE BIOLOGY CIRCULATION
Low Demand Questions QUESTIONSHEET 3
The bar chart shows the pulse rates of two people immediately after four types of activity.
140
130
120
110
(beats/minute)
pulse rate
Person 1
100
Person 2
90
80
70
60
50
A B C D
activity
(a) What was the pulse rate
(i) of person 1 after activity A?
.........................................................................................................................................................................[1]
(ii) of person 2 after activity C?
.........................................................................................................................................................................[1]
(b) During which activity was there the greatest difference in the pulse rate of the two people?
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(c) The four activities were walking. standing, running and sitting down. Match these activities to
the letters A, B, C and D on the bar chart.
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(d) Why does the pulse rate increase during exercise?
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TOTAL / 10
GCSE BIOLOGY CIRCULATION
Low Demand Questions QUESTIONSHEET 4
Three students measured their pulse rates before a game of squash. They measured their pulse rates again after
the game every minute for 5 minutes. The table shows their results.
Pulse rate /beats per minute
Student A Student B Student C
Before exercise 72 65 75
1 minute after 170 144 178
2 minutes after 142 115 132
3 minutes after 96 70 105
4 minutes after 82 65 92
5 minutes after 75 65 84
(a) Which student had the highest pulse rate after the game of squash?
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(b)(i) What is meant by recovery time?
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(ii) How long was student B's recovery time?
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(c)(i) Which of the three students was the fittest?
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(ii) Give two reasons for your answer.
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(d) Which of the three students would take longest to recover from the game of squash?
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TOTAL / 7
GCSE BIOLOGY CIRCULATION
Medium Demand Questions QUESTIONSHEET 5
(a) Why does the body need oxygen?
.........................................................................................................................................................................[1]
(b) The diagram shows the passage of oxygen around the body.
Oxyg en
blood flow
blood flow
B D
(i) Which organ does A represent?
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(ii) What happens to oxygen in organ A?
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(iii) Name the cells labelled C.
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(iv) What do the cells labelled C do?
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(Continued...)
GCSE BIOLOGY CIRCULATION
QUESTIONSHEET 5 CONTINUED
(v) B represents the organs of the body. What happens to the oxygen in the blood in the body organs?
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(vi) By what process does oxygen leave the blood?
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(vii) Name the type of blood vessel which connects the blood vessels labelled D and E.
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TOTAL / 9
GCSE BIOLOGY CIRCULATION
High Demand Questions QUESTIONSHEET 13
The diagram shows a plan of part of the blood circulation.
Lungs
8 1
Heart
7
2
Liver
3
4
6
Intestines
5
(a) As blood travels around the body it picks up substances from various organs.
Name one substance the blood picks up from
(i) the small intestine.
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(ii) the large intestine.
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(iii) adrenal glands.
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(iv) the lungs.
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(b) Mammals have a double circulatory system.
Explain what this means.
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(Continued...)
GCSE BIOLOGY CIRCULATION
QUESTIONSHEET 13 CONTINUED
(c) Complete the following table to show whether the blood vessels 1, 3, 4, 6 and 7 contain
oxygenated or deoxygenated blood. Place a tick ( ) in the appropriate box.
The first one has been completed as an example. [4]
Blood Deoxygenated
Oxygenated blood
vessel blood
1
3
4
6
7
(d) Use the numbers and the name of the organs from the diagram to complete the following
sequence showing the path of blood from the liver to the lungs. [4]
liv e r lu n g s
TOTAL / 14
GCSE BIOLOGY CIRCULATION
High Demand Questions QUESTIONSHEET 14
The graph shows the effect of changes in the heart rate on the volume of blood pumped by the left ventricle.
5.5
5
/dm3 per minute
volume of blood
4.5
3.5
3
70 75 80
85 90 95 100 10 110 115 120
5
heart rate /beats per minute
(a) What was the volume of blood pumped by the left ventricle when the heart rate was
80 beats per minute?
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(b) By how much did the volume of blood pumped by the left ventricle increase when the
heart rate increased from 70 to 85 beats per minute?
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(c) Calculate the volume of blood pumped out at each heart beat when the heart rate was
100 beats per minute.
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(d) Use the graph to estimate the volume of blood pumped when the heart rate is 120
beats per minute.
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(e) Describe how the volume of blood pumped by the left ventricle changes as the
heart rate increases.
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TOTAL / 8
GCSE BIOLOGY CIRCULATION
.........................................................................................................................................................................[3]
TOTAL / 8
GCSE BIOLOGY CIRCULATION
TOTAL / 8
