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 instructors and competitors, to show the necessities of the assessment. It shows the premise on which Examiners were told to grant marks. It doesn't demonstrate the subtleties of the conversations that occurred at an Examiners meeting before stamping started. All Examiners are told that option right answers and surprising methodologies in competitors contents must be given denotes that decently mirror the pertinent 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 prospectuses and some Ordinary Level schedules. Page 2 Mark Scheme Syllabus Paper IGCSE May/June 2007 0610 02 UCLES 2007 1 (an) (I) leaf B has equal veins/veins not stretched; [1] (ii) living being D has body isolated into portions/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 On the off chance that no working, at that point 2 imprints for right amplification In the event 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 bloom); 2 littler/more subtle petals (in wind pollinated bloom); 3 stamens outside of petals/blossoms (in wind pollinated bloom); 4 shame/style outside of petals/blossoms (in wind pollinated bloom); 5 fluffy shame (in wind pollinated blossom); any two 1 imprint each [2] (d) process blooming plant human treatment germination implantation fertilization sex Every vertical segment 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/vertebrates/fowls/named models; R creepy crawlies 2 red external coat pulls in them; 3 substance urges them to eat organic product; 4 seeds hard covers permit it to maintain a strategic distance from absorption/debilitate gulping; 5 dispersal in defecation/dropped while expelling tissue; 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) ceaseless (variety); [1] (b) (I) plotted as four bars, all unmistakably recognized (underneath or on bar); precise plotting (+/a large portion of a square); [2] (ii) qualities/alleles/genotype/DNA/OWTTE; [1] (c) (I) a change/modification in a quality/allele/DNA/chromosome/chromosome number; [1] (ii) substance/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 woods left/all devastated; [1] (iv) D; [1] (b) (I) microorganisms/growths; [1] (ii) carbon dioxide; minerals/named mineral salt/particle; I supplements R nitrogen (gas) [2] (c) 1 harvests 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 scrap 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 marked P corresponding to C yet inverse way/ connecting boxes from air to plants around outside of graph; [1] (ii) carbon dioxide + water; = glucose/(basic) 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/depiction to cell; 2 increment surface region (for retention); 3 no chloroplasts/chlorophyll; 4 underground/avoided light; [4] I - ref to photosynthesis