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Question 20N.1.HL.TZ0.34

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Date November 2020 Marks available [Maximum mark: 1] Reference code 20N.1.HL.TZ0.34
Level HL Paper 1 Time zone TZ0
Command term Question number 34 Adapted from N/A
34.
[Maximum mark: 1]
20N.1.HL.TZ0.34

Plants were given four different light treatments to investigate the influence of light on flowering. Which method can be used to induce a short-day plant to flower?

A. 8 hours light, 8 hours dark, 8 hours light

B. 14 hours light, 10 hours dark

C. 8 hours light, 16 hours dark

D. 10 hours light, 14 hours dark with a flash of light halfway through

[1]

Markscheme

C

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