Biology · May / June 2023 · Paper 61 · Question 2
0610
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Fig. 2.1 is a photograph of a cross-section of a root from a carrot plant, Daucus carota. magnification ×6 P Q Fig. 2.1
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2(a)(i)[4]
Outline – single clear line ;
Size – width (PQ) at least 109 mm ;
Detail 1: 3 or more layers ;
Detail 2: white line layer with a point at approximately 9 o’clock position ;
2(a)(ii)[3]
109 ± 1 (mm) ;
18.0 (for measurement of 108 mm) / 18.2 (for measurement of 109 mm) / 18.3 (for measurement of 110 mm) ;;
2(b)(i)[1]
mass of, carrot / cubes ;
2(b)(ii)[2]
any two from:
initial, size / surface area / volume of carrot ;
soaking time / AW ;
drying method ;
type of, plant tissue / carrot ;
2(b)(iii)[1]
idea that, extra solution / water / AW, will affect the, mass / AW ;
2(b)(iv)[4]
axes labelled with units ;
suitable linear scale and data occupies at least half the grid in both directions ;
six points plotted accurately ± half a small square ; suitable line drawn ;
2(b)(v)[2]
answer consistent with the line on the candidate’s graph ;
intercept clearly indicated on the graph ;
2(b)(vi)[2]
(–)6.25(%) ;;
2(b)(vii)[1]
to identify anomalous results ;
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