Candidate Number
International General Certificate of Secondary Education
CAMBRIDGE INTERNATIONAL EXAMINATIONS
BIOLOGY
PAPER 6 Alternative to Practical
0610/6
MAY/JUNE SESSION 2002
1 hour
Candidates answer on the question paper. No additional materials are required.
TIME
1 hour
INSTRUCTIONS TO CANDIDATES Write your name, Centre number and candidate number in the spaces at the top of this page. Answer all questions. Write your answers in the spaces provided on the question paper. Use a sharp pencil for your drawings. Coloured pencils or crayons should not be used. INFORMATION FOR CANDIDATES The intended number of marks is given in brackets [ ] at the end of each question or part question.
FOR EXAMINER’S USE
1 2 3 4 TOTAL
This question paper consists of 10 printed pages and 2 blank pages.
SP (CW/KN) S16792/3 © CIE 2002
[Turn over
2 1 A 15 cm length of Visking tubing was knotted at one end to make a small tube. A 10 cm3 sample of a mixture of active yeast in 2% sucrose solution was placed in the tube and the tube was knotted at the top. The tube was suspended in a small beaker containing limewater, as shown in Fig. 1.1. The apparatus was left for 30 minutes at room temperature (22 °C) and then observed.
For Examiner’s Use
limewater
active yeast in 2% sucrose solution Visking tubing Fig. 1.1 (a) (i) Suggest what changes you might expect to observe in the contents of the tube and the beaker. .................................................................................................................................. .................................................................................................................................. ..................................................................................................................................