9700_w08_ms_32 - UNIVERSITY OF CAMBRIDGE INTERNATIONAL...

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UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS GCE Advanced Subsidiary Level and GCE Advanced Level MARK SCHEME for the October/November 2008 question paper 9700 BIOLOGY 9700/32 Paper 32 (Advanced Practical 2), maximum raw mark 40 This mark scheme is published as an aid to teachers and candidates, to indicate the requirements of the examination. It shows the basis on which Examiners were instructed to award marks. It does not indicate the details of the discussions that took place at an Examiners’ meeting before marking began. All Examiners are instructed that alternative correct answers and unexpected approaches in candidates’ scripts must be given marks that fairly reflect the relevant knowledge and skills demonstrated. Mark schemes must be read in conjunction with the question papers and the report on the examination. CIE will not enter into discussions or correspondence in connection with these mark schemes. CIE is publishing the mark schemes for the October/November 2008 question papers for most IGCSE, GCE Advanced Level and Advanced Subsidiary Level syllabuses and some Ordinary Level syllabuses.
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Page 2 Mark Scheme Syllabus Paper GCE A/AS LEVEL October/November 2008 9700 32 © UCLES 2008 Question Expected Answers Additional Guidance Marks Draw and label ONE cell in distilled water 2 MMO collection 1 (a) (i) one cell drawn (at high power), two lines for cell wall; correct cell structure and cell wall and nucleus labelled correctly; Ignore low power. Reject two or more cells together. Rej. if have additional organelles mitochondria, chloroplasts, Golgi. [2] Present your observations from the slides made from distilled water, T1 and T2 2 MMO decisions, 2 PDO recording 1 (a) (ii) Either single table, all cells drawn, column headings: solution/slide/(distilled) water/ W and T1 and T2 ; to left/across top, observations/feature/e.g. to right/ underneath/clear what is recorded in the boxes; T1 cell membranes/cytoplasm pulled away from cell wall/plasmolysed; T2 granules/particles in cell/more plasmolysed/destroyed/stained/coloured e.g. brown/black/AW; Or when only drawings given three drawings, labelled (distilled) water/ W , T1 and T2 ; clear that cell walls and cell membranes are all different (for water, T1 and T2 ); T1 cell membranes/cytoplasm pulled away from cell wall/plasmolysed; T2 granules/particles in cell/more plasmolysed/destroyed/stained/coloured e.g. brown/black/AW; No outer boundary needed for table. Reject cells shrink or become smaller.
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This note was uploaded on 09/30/2011 for the course BIOLOGY 425 taught by Professor Prof.yemanga during the Spring '11 term at Bethany CA.

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9700_w08_ms_32 - UNIVERSITY OF CAMBRIDGE INTERNATIONAL...

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