Biology · May / June 2025 · Paper 61 · Question 2
0610
As printed in the paper
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2(a)(i)[1]
blue ;
2(a)(ii)[2]
volume of DCPIP ;
concentration of DCPIP ;
2(b)(i)[4]
axes labelled with units ;
suitable linear scale and data occupies at least half the grid in both directions ;
five points plotted accurately ± half a small square ;
suitable line drawn ;
2(b)(ii)[2]
intercept indicated on the candidate’s graph at 1.2 cm3 ;
concentration correct for intercept at 1.2 cm3 ± half a small square ;
2(c)(i)[1]
storing decreases the vitamin C content (of apple juice) ;
2(c)(ii)[1]
a result that does not fit the, pattern / trend / AW ;
2(c)(iii)[1]
170 (circled) ;
2(c)(iv)[3]
– 61.8 ;;;
2(d)(i)[4]
Outline is a single clear line with no shading ;
Size –at least half the available space used ;
Detail 1: six sepals and a stalk ;
Detail 2: (at least) five white stripes on the lower side, radiating out and shown as double lines and four seeds shown as circles / ovals ;
2(d)(ii)[3]
PQ = 61 ± 1 (mm) ;
33.9 (mm) ;;
2(e)[2]
add Benedict’s (reagent / solution) ;
heat ;
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