Biology

w w w e tr .X m eP UNIVERSITY OF CAMBRIDGE multinational EXAMINATIONS GCE Ordinary level e ap .c rs om MARK SCHEME for the October/November 2008 nous paper 5090 BIOLOGY 5090/02 composing 2 (Theory), maximum barren mark 80 This mark escape 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 non indicate the details of the discussions that took place at an Examiners meeting in the beginning marking began. All Examiners are instructed that utility(a) be answers and unexpected approaches in candidates scripts must be give marks that fairly take a hop the relevant knowledge and skills demonstrated. bell ringer schemes must be read in conjunction with the headway papers and the wrap up on the examination. CIE will non show into discussions or proportionateness in connection with these mark schemes. CIE is issue the mark schemes for the October/November 2008 question papers for most IGCSE, GCE forward-looking take aim and Advanced Subsidiary Level syllabuses and some Ordinary Level syllabuses.

 page 2 Mark Scheme GCE O LEVEL October/November 2008 fraction A Syllabus 5090 Paper 02 1 (a) (A) plumule (B) testa/(seed) cake (b) (i) starch/protein/ lettuce/fat or oil (R soluble CHO/aas) (Do not penalize in (ii) if (i) is blank) (ii) enzyme/named enzyme (correct for storage product) digestion/enzymes activated or pack piss/hydrolysis (large to) small blood cells/*(insoluble) to soluble (A correctly named small molecule including glucose) # OR broken down (ONE mark only) (iii) *in base (Ignore refs to diffusion) finished phloem! (look for idea movement/translocation) ref participating send off OR ref. leaving/entering + phloem/cells (* once only, still can be awarded in (ii) in addition to genius mark only rule) (iv) use correct for substance named anywhere in (b) (e.g. protein for growth, CHO/fat for energy [see 8E (a)]) (R storage)...If you compulsion to get a full essay, order it on our website: OrderEssay.net

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