0610 BIOLOGY Essays (1277 words) - Secondary Education In England

College OF CAMBRIDGE INTERNATIONAL EXAMINATIONS Global General Certificate of Secondary Education Imprint SCHEME for the May/June 2007 inquiry paper 0610 BIOLOGY 0610/02 Paper 2 (Core Theory), greatest crude imprint 80 This imprint conspire is distributed as a guide to educators and competitors, to show the necessities of the assessment. It shows the premise on which Examiners were told to grant marks. It doesn't show the subtleties of the conversations that occurred at an Examiners meeting before stamping started. All Examiners are told that option right answers and unforeseen methodologies in applicants contents must be given denotes that decently mirror the important information and aptitudes illustrated. Imprint plans must be perused related to the inquiry papers and the report on the assessment. CIE won't go into conversations or correspondence regarding these imprint plans. CIE is distributing the imprint plans for the May/June 2007 inquiry papers for most IGCSE, GCE Propelled Level and Advanced Subsidiary Level schedules and some Ordinary Level prospectuses. Page 2 Mark Scheme Syllabus Paper IGCSE May/June 2007 0610 02 UCLES 2007 1 (an) (I) leaf B has equal veins/veins not spread; [1] (ii) living being D has body separated into fragments/rings/OWTTE; [1] (iii) living being E has four sets of/eight legs/appendages ; I - ref to cephalothorax (incorrect) [1] (iv) living being G has multiple sets of legs/appendages/non-indistinguishable/shifted legs/appendages/2 districts to body/cephalothorax and mid-region; I refs to exoskeleton [1] N.B. No letter given no imprint (b) show division of 50/5; (amplification) x10/times 10; R 10mm In the event that no working, at that point 2 imprints for right amplification On the off chance that off-base working can increase 1 imprint for right amplification I proportions [2] [Total: 6] 2 (an) A = sepal/calyx; B = anther/stamen; Accept androecium [2] (b) to get/trap dust/OWTTE; Accept ref to male gamete [1] (c) 1 no nectary (in wind pollinated blossom); 2 littler/more subtle petals (in wind pollinated bloom); 3 stamens outside of petals/blossoms (in wind pollinated bloom); 4 disgrace/style outside of petals/blossoms (in wind pollinated bloom); 5 fluffy shame (in wind pollinated blossom); any two 1 imprint each [2] (d) process blossoming plant human preparation germination implantation fertilization sex Every vertical section right 1 imprint each [2] I crosses in different boxes Page 3 Mark Scheme Syllabus Paper IGCSE May/June 2007 0610 02 UCLES 2007 (e) (I) 1 scattered by creatures/well evolved creatures/feathered creatures/named models; R creepy crawlies 2 red external coat pulls in them; 3 substance urges them to eat natural product; 4 seeds hard covers permit it to maintain a strategic distance from processing/debilitate gulping; 5 dispersal in defecation/dropped while evacuating substance; any three 1 imprint each [3] (ii) 1 dampness/water/OWTTE; 2 with minerals/named mineral; 3 warm conditions/appropriate/ideal temperature; 4 in light/not concealed region; any three 1 imprint each [3] [Total: 13] 3 (a) constant (variety); [1] (b) (I) plotted as four bars, all plainly distinguished (underneath or on bar); exact plotting (+/a large portion of a square); [2] (ii) qualities/alleles/genotype/DNA/OWTTE; [1] (c) (I) a change/adjustment in a quality/allele/DNA/chromosome/chromosome number; [1] (ii) compound/named model/cigarette tar; (gamma/beta/alpha/ionizing) radiation; X beams; UV light; any two 1 imprint each [2] [Total: 7] Page 4 Mark Scheme Syllabus Paper IGCSE May/June 2007 0610 02 UCLES 2007 4 (an) (I) F; [1] (ii) E; [1] (iii) no tropical woodland left/all annihilated; [1] (iv) D; [1] (b) (I) microbes/growths; [1] (ii) carbon dioxide; minerals/named mineral salt/particle; I supplements R nitrogen (gas) [2] (c) 1 yields take/utilize mineral salts from soil; 2 yield expelled from land; 3 soil gets fruitless/low in mineral salts; 4 harvest yield drops to useless levels; 5 no new/substitution of humus/no reusing of materials; 6 morsel structure lost; any three 1 imprint each [3] [Total: 10] 5 (an) (I) carbon mixes in creatures; [1] (ii) C; D; E; any two 1 imprint each [2] (iii) B; [1] (iv) A; [1] (b) (I) bolt named P corresponding to C however inverse way/ connecting boxes from air to plants around outside of graph; [1] (ii) carbon dioxide + water; = glucose/(straightforward) sugar/starch + oxygen; [2] I ref to water on item side A right recipe an alternative for word no requirement for condition to be adjusted [Total: 8] Page 5 Mark Scheme Syllabus Paper IGCSE May/June 2007 0610 02 UCLES 2007 6 (an) A; D; E; [3] I named parts (b) root hair cell 1 long expansion/portrayal to cell; 2 increment surface zone (for ingestion); 3 no chloroplasts/chlorophyll; 4 underground/avoided light; [4] I - ref to photosynthesis