Biology paper 6 year 2013
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UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS
International General Certificate of Secondary Education
*0191634512*
0610/61
BIOLOGY
Paper 6 Alternative to Practical
May/June 2013
1 hour
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 pencil for any diagrams or graphs.
Do not use staples, paper clips, highlighters, glue or correction fluid.
DO NOT WRITE IN ANY BARCODES.
Answer all questions.
Electronic calculators may be used.
You may lose marks if you do not show your working or if you do not use appropriate units.
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.
This document consists of 11 printed pages and 1 blank page.
IB13 06_0610_61/5RP
© UCLES 2013
[Turn over
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2
1
Fig. 1.1 shows a bird’s egg. Part of the shell has been removed.
For
Examiner's
Use
shell yolk albumen
Fig. 1.1
Approximately 90 % of albumen is water. The remaining 10 % is made up of other substances such as reducing sugar.
(a) Describe how you could safely test a sample of albumen for reducing sugar.
[4]
(b) A student tested some albumen for the presence of protein using Biuret reagent.
The solution changed colour. It was a positive result.
Describe this colour change.
[1]
© UCLES 2013
0610/61/M/J/13
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3
(c) Fig. 1.2 shows an experiment to investigate the effect of acid on albumen.
3 drops of water
For
Examiner's
Use
3 drops of dilute acid
test-tube 1
test-tube 2
Fig. 1.2
The test-tubes were observed after five minutes.
The results are shown in Table 1.1.
Table 1.1 test-tube observation
1
stayed as a clear liquid
2
UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS
International General Certificate of Secondary Education
*0191634512*
0610/61
BIOLOGY
Paper 6 Alternative to Practical
May/June 2013
1 hour
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 pencil for any diagrams or graphs.
Do not use staples, paper clips, highlighters, glue or correction fluid.
DO NOT WRITE IN ANY BARCODES.
Answer all questions.
Electronic calculators may be used.
You may lose marks if you do not show your working or if you do not use appropriate units.
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.
This document consists of 11 printed pages and 1 blank page.
IB13 06_0610_61/5RP
© UCLES 2013
[Turn over
www.maxpapers.com
2
1
Fig. 1.1 shows a bird’s egg. Part of the shell has been removed.
For
Examiner's
Use
shell yolk albumen
Fig. 1.1
Approximately 90 % of albumen is water. The remaining 10 % is made up of other substances such as reducing sugar.
(a) Describe how you could safely test a sample of albumen for reducing sugar.
[4]
(b) A student tested some albumen for the presence of protein using Biuret reagent.
The solution changed colour. It was a positive result.
Describe this colour change.
[1]
© UCLES 2013
0610/61/M/J/13
www.maxpapers.com
3
(c) Fig. 1.2 shows an experiment to investigate the effect of acid on albumen.
3 drops of water
For
Examiner's
Use
3 drops of dilute acid
test-tube 1
test-tube 2
Fig. 1.2
The test-tubes were observed after five minutes.
The results are shown in Table 1.1.
Table 1.1 test-tube observation
1
stayed as a clear liquid
2