Past paper
w
w ap eP
m
e tr .X
w om .c
s er UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS
International General Certificate of Secondary Education
*9505164189*
0653/03
COMBINED SCIENCE
May/June 2007
Paper 3 (Extended)
1 hour 15 minutes
Candidates answer on the Question Paper.
No Additional Materials are required.
READ THESE INSTRUCTIONS FIRST
Write your Centre number, candidate number and name on all the work you hand in.
Write in dark blue or black pen.
You may use a soft pencil for any diagrams, graphs, tables or rough working.
Do not use staples, paper clips, highlighters, glue or correction fluid.
For Examiner's Use
DO NOT WRITE IN ANY BARCODES.
Answer all questions.
A copy of the Periodic Table is printed on page 16.
At the end of the examination, fasten all your work securely together.
The number of marks is given in brackets [ ] at the end of each question or part question. 1
2
3
4
5
6
7
8
9
Total
This document consists of 16 printed pages.
IB07 06_0653_03/5RP
© UCLES 2007
[Turn over
2
1
Fig. 1.1 shows a vertical section through a human heart.
For
Examiner's
Use
aorta pulmonary vein
left ventricle
Fig. 1.1
(a) On the diagram, use label lines to label these parts of the heart. bicuspid valve
pulmonary artery
[3]
septum
(b) Explain why the wall of the left ventricle is thicker than the wall of the right ventricle.
[2]
(c) Describe two differences between the structure of the aorta and the pulmonary vein.
1.
2.
[2]
(d) The heart muscle is supplied with blood through the coronary arteries.
Explain why a blockage in these arteries can cause a heart attack.
[2]
© UCLES 2007
0653/03/M/J/07
3
2
(a) Fig. 2.1 shows a simple circuit containing two identical lamps.
For
Examiner's
Use
6V
A1
A3
A2
V1
V2
Fig. 2.1
Ammeter A1 reads 0.15 A.
Write down the readings on ammeter A2, ammeter A3, voltmeter V1,
w ap eP
m
e tr .X
w om .c
s er UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS
International General Certificate of Secondary Education
*9505164189*
0653/03
COMBINED SCIENCE
May/June 2007
Paper 3 (Extended)
1 hour 15 minutes
Candidates answer on the Question Paper.
No Additional Materials are required.
READ THESE INSTRUCTIONS FIRST
Write your Centre number, candidate number and name on all the work you hand in.
Write in dark blue or black pen.
You may use a soft pencil for any diagrams, graphs, tables or rough working.
Do not use staples, paper clips, highlighters, glue or correction fluid.
For Examiner's Use
DO NOT WRITE IN ANY BARCODES.
Answer all questions.
A copy of the Periodic Table is printed on page 16.
At the end of the examination, fasten all your work securely together.
The number of marks is given in brackets [ ] at the end of each question or part question. 1
2
3
4
5
6
7
8
9
Total
This document consists of 16 printed pages.
IB07 06_0653_03/5RP
© UCLES 2007
[Turn over
2
1
Fig. 1.1 shows a vertical section through a human heart.
For
Examiner's
Use
aorta pulmonary vein
left ventricle
Fig. 1.1
(a) On the diagram, use label lines to label these parts of the heart. bicuspid valve
pulmonary artery
[3]
septum
(b) Explain why the wall of the left ventricle is thicker than the wall of the right ventricle.
[2]
(c) Describe two differences between the structure of the aorta and the pulmonary vein.
1.
2.
[2]
(d) The heart muscle is supplied with blood through the coronary arteries.
Explain why a blockage in these arteries can cause a heart attack.
[2]
© UCLES 2007
0653/03/M/J/07
3
2
(a) Fig. 2.1 shows a simple circuit containing two identical lamps.
For
Examiner's
Use
6V
A1
A3
A2
V1
V2
Fig. 2.1
Ammeter A1 reads 0.15 A.
Write down the readings on ammeter A2, ammeter A3, voltmeter V1,