9700_s02_qp_4.pdf

9700_s02_qp_4.pdf - This question paper consists of 11...

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Unformatted text preview: This question paper consists of 11 printed pages and 1 blank page. SP (CW/JG) S24435/3 © CIE 2002 [Turn over CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Advanced Level BIOLOGY 9700/4 PAPER 4 Structured Questions A2 Core 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. All working for numerical answers must be shown. INFORMATION FOR CANDIDATES The intended number of marks is given in brackets [ ] at the end of each question or part question. Candidate Centre Number Number Candidate Name FOR EXAMINER’S USE 1 2 3 4 5 TOTAL 2 9700/4/M/J/02 Answer all the questions. Write your answers in the spaces provided. 1 Fig. 1.1 shows the flow of electrons in non-cyclic and cyclic photophosphorylation. Fig. 1.1 (a) State the precise location of photophosphorylation in a chloroplast. ......................................................................................................................................[2] (b) Describe the role of light in photophosphorylation. .......................................................................................................................................... .......................................................................................................................................... ......................................................................................................................................[2] For Examiner’s Use PSII PSI PSI - photosystem I PSII - photosystem II etc - electron transport chain e-- electron e- etc e- light energy light energy high low electron energy level PSI etc light energy high low key non-cyclic photophosphorylation cyclic photophosphorylation 3 9700/4/M/J/02 [Turn over (c) Explain how non-cyclic photophosphorylation differs from cyclic photophosphorylation. .......................................................................................................................................... .......................................................................................................................................... .......................................................................................................................................... .......................................................................................................................................... .............................................................................................................................................
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This note was uploaded on 01/25/2012 for the course BIO alevels taught by Professor J.b during the Spring '11 term at Taylor's.

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9700_s02_qp_4.pdf - This question paper consists of 11...

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