Biology Past Paper May June 2012

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UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Ordinary Level

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BIOLOGY Paper 6 Alternative to Practical 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 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. DO NOT WRITE IN ANY BARCODES. 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 question.

5090/62
May/June 2012 1 hour

For Examiner’s Use 1 2 3 4 Total

This document consists of 11 printed pages and 1 blank page.
DC (SJF/CGW) 43596/7 © UCLES 2012

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2 1 Some students carried out an investigation into the effect of light on the development of a type of leaf. Fig. 1.1 (opposite) shows six of these leaves that developed in sunlight and six that developed in shade. (a) Measure the maximum width of the leaves and record your measurements in Table 1.1. Leaf 1, ‘Leaves developed in sunlight’, indicates where measurements should be taken. Table 1.1 maximum width of leaf / mm leaves developed in sunlight 1 2 3 4 5 6 mean (b) (i) [4] leaves developed in shade
For Examiner’s Use

Calculate the mean measurements and record them in the bottom row in Table 1.1. [1] Using your measurements and Fig. 1.1 suggest how light has affected the development of these leaves. .................................................................................................................................. .....................................................................................................................................