Biology · Oct / Nov 2025 · Paper 61 · Question 3

axes labelled with units ;

suitable linear scale and plotted area occupies at least half the grid in both directions ;

all points plotted accurately ± half a small square ;

suitable line drawn between all points plotted ;

as the height increases the vital capacity increases / AW ;

any indication on graph at 175 cm OR indication of correct value on the vital capacity axis ;

correct value recorded from the candidate’s graph ;

biuret (reagent) ;