9700_s03_ms_1+2+3+4+5+6

9700_s03_ms_1+2+3+4+5+6 - June 2003 GCE A AND AS LEVEL MARK...

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June 2003 GCE A AND AS LEVEL MARK SCHEME MAXIMUM MARK: 40 SYLLABUS/COMPONENT: 9700/01 BIOLOGY Paper 1 (Multiple Choice)
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Page 1 Mark Scheme Syllabus Paper A/AS LEVEL EXAMINATIONS – JUNE 2003 9700 1 © University of Cambridge Local Examinations Syndicate 2003 Question Number Key Question Number Key 1 D 21 D 2 A 22 B 3 C 23 B 4 C 24 A 5 A 25 C 6 C 26 C 7 D 27 B 8 A 28 B 9 B 29 C 10 A 30 D 11 B 31 A 12 C 32 C 13 B 33 C 14 C 34 D 15 D 35 B 16 A 36 B 17 D 37 D 18 A 38 B 19 C 39 B 20 C 40 C TOTAL 40
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June 2003 GCE A AND AS LEVEL MARK SCHEME MAXIMUM MARK: 50 SYLLABUS/COMPONENT: 9700/02 BIOLOGY Paper 2 (Theory 1)
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Page 1 Mark Scheme Syllabus Paper A/AS LEVEL EXAMINATIONS – JUNE 2003 9700 2 © University of Cambridge Local Examinations Syndicate 2003 KEY a semi colon ; indicates a separation of marking points an oblique line / indicates alternative wording or acceptable alternative R means reject A means accept AW means 'alternative wording' underlined with a accept this word only, no alternative word is straight line acceptable D represents quality mark(s) awarded for diagrams, as indicated on the Mark Scheme L represents mark(s) awarded for labels on diagrams, as indicated on the Mark Scheme Q represents quality of expression and is used for marks awarded on free-response questions
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Page 2 Mark Scheme Syllabus Paper A/AS LEVEL EXAMINATIONS – JUNE 2003 9700 2 © University of Cambridge Local Examinations Syndicate 2003 Question Expected Answers Marks 1 (a) C, E, D, B; 1 (b) centromeres have divided/duplicated; R. split R. replicated (sister) chromatids/(daughter) chromosomes pulled/moved/ separate/migrate to (opposite) poles; ref. to the spindle/microtubules/spindle fibres; R. fibres max 2 (c) replication/DNA synthesis; assembly of nucleotides/polynucleotide (chain) formed; (alongside) old/original/both strands, act as template; by base/complementary pairing/ A-T and G-C; quantity of DNA doubles/two new double helices formed; max 3 (d) production of genetically identical cells/genetically uniform cells/ identical DNA/maintains genetic stability/same number and kind of c-somes/no genetic variation; 1 [Total 7] 2 (a) Award one mark per column. No penalisation for complete lack of all crosses (or all ticks) unless mixture of x and ± missing as agreed statement emphysema tuberculosis obesity rickets smallpox eliminated by vaccination xx x x ± a worldwide infectious disease x ± ± or x a form of malnutrition ±± x a deficiency x ± x involves degeneration of lung tissue ± ± x x x [Total 5]
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Page 3 Mark Scheme Syllabus Paper A/AS LEVEL EXAMINATIONS – JUNE 2003 9700 2 © University of Cambridge Local Examinations Syndicate 2003 3 (a) Correct letter order on Question Paper: A - nucleus; C - mitochondria; B - RER; D - Golgi apparatus; E - cell surface membrane; max 4 R. process statements instead of letters (b) secrete/release/produce/make antibodies; 1 A. immunoglobulins R. memory cells unless linked to antibody production (c) nucleus/nuclear envelope/nuclear membranes/nucleolus; no cell wall; have organelles/named visible organelles; (golgi/mitochondrion/ RER) R. more organelles larger (cell); fixed ribosomes/ribosomes attached to E.R./no free
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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_s03_ms_1+2+3+4+5+6 - June 2003 GCE A AND AS LEVEL MARK...

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