Biology: Ruddy Duck and Egg Cell
Centre Number
Candidate Number
Name
UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education BIOLOGY Paper 3 Extended May/June 2005 1 hour 15 minutes
Candidates answer on the Question Paper. There are no Additional Materials.
0610/03
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 in the spaces provided on the Question Paper. You may use a soft pencil for any diagrams, graphs or rough working. Do not use staples, paper clips, highlighters, glue or correction fluid. Answer all questions. 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 questions.
FOR EXAMINER’S USE 1 2 3 4 5 6 TOTAL This document consists of 15 printed pages and 1 blank page.
IB05 06_0610_03/3RP UCLES 2005
[Turn over
2 1 Three plants were grown to study the effects of nitrate and magnesium ion deficiency on their development. They were kept in the same conditions, except for the types of minerals supplied. Plant A was provided with all essential minerals. Plant B was given all minerals except nitrate ions. Plant C was given all minerals except magnesium ions. Fig. 1.1 shows the plants a few weeks later.
For Examiner's Use
normal, healthy leaf
pale green leaf
yellow leaf yellow, dead leaf
A
B
Fig. 1.1
C
© UCLES 2005
0610/03/M/J/05
3 (a) State three conditions, other than water and the concentration of mineral ions, that would need to be kept the same for all the plants, in order to make the investigation a fair test. 1. 2. 3. [3]
For Examiner's Use
(b) Describe and explain the effect on plant growth of (i) a deficiency of nitrate ions on plant B; description
explanation
[4] (ii) a deficiency of magnesium ions on plant C. description
explanation [2]
© UCLES 2005
0610/03/M/J/05
Candidate Number
Name
UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education BIOLOGY Paper 3 Extended May/June 2005 1 hour 15 minutes
Candidates answer on the Question Paper. There are no Additional Materials.
0610/03
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 in the spaces provided on the Question Paper. You may use a soft pencil for any diagrams, graphs or rough working. Do not use staples, paper clips, highlighters, glue or correction fluid. Answer all questions. 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 questions.
FOR EXAMINER’S USE 1 2 3 4 5 6 TOTAL This document consists of 15 printed pages and 1 blank page.
IB05 06_0610_03/3RP UCLES 2005
[Turn over
2 1 Three plants were grown to study the effects of nitrate and magnesium ion deficiency on their development. They were kept in the same conditions, except for the types of minerals supplied. Plant A was provided with all essential minerals. Plant B was given all minerals except nitrate ions. Plant C was given all minerals except magnesium ions. Fig. 1.1 shows the plants a few weeks later.
For Examiner's Use
normal, healthy leaf
pale green leaf
yellow leaf yellow, dead leaf
A
B
Fig. 1.1
C
© UCLES 2005
0610/03/M/J/05
3 (a) State three conditions, other than water and the concentration of mineral ions, that would need to be kept the same for all the plants, in order to make the investigation a fair test. 1. 2. 3. [3]
For Examiner's Use
(b) Describe and explain the effect on plant growth of (i) a deficiency of nitrate ions on plant B; description
explanation
[4] (ii) a deficiency of magnesium ions on plant C. description
explanation [2]
© UCLES 2005
0610/03/M/J/05