DP Biology (last assessment 2024)

Test builder »

Question 18M.2.HL.TZ2.1d.i

Select a Test
Date May 2018 Marks available [Maximum mark: 1] Reference code 18M.2.HL.TZ2.1d.i
Level HL Paper 2 Time zone TZ2
Command term Identify Question number d.i Adapted from N/A
d.i.
[Maximum mark: 1]
18M.2.HL.TZ2.1d.i

Leaves were removed from Arabidopsis plants that had been grown in long day and short day conditions and the concentration of starch within them was measured. This was done both at the end of the day (D) and at the end of the night (N) in each of the four stages of development (S1, S2, S3, S4).

(d.i)

For each of the stages, identify whether the starch concentration at the end of the day is higher in the leaves grown in long day or short day conditions.

[1]

Markscheme

higher in plants grown in short days in S1 and higher in plants grown in long days for all other stages/S2, S3 and S4

Candidates must mention all stages for the mark.

Syllabus sections