9700_w01_ms_3

9700_w01_ms_3 - NOVEMBER 2001 GCE ADVANCED SUBSIDIARY LEVEL...

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NOVEMBER 2001 GCE ADVANCED SUBSIDIARY LEVEL MARK SCHEME MAXIMUM MARK : 25 SYLLABUS/COMPONENT : 8700/3 BIOLOGY (PRACTICAL)
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Page 1 of 1 Mark Scheme Syllabus Paper AS Level Examinations – November 2001 8700 3 1( a ) three similar colours – green – a variation of; 1 (b) table headings: flask / beaker (contents of); volume of sulphuric acid added in cm 3 ; three burette readings; tube B a value below 3 cm 3 ; value A less than that of C ; two columns ( two rows ) only and need not be lined; value of C greatest; 5 max (c) ref to molecular effect, enzyme colliding with substrate to give ammonium carbonate; titration gives amount of ammonium carbonate produced; boiling leads to little or no reaction; enzyme is denatured; protein in nature; comparison of amount of product in A and C ; comment on relative denaturation in
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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_w01_ms_3 - NOVEMBER 2001 GCE ADVANCED SUBSIDIARY LEVEL...

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