DP Biology (first assessment 2025)

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Question 23M.1B.SL.TZ1.d

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Date May 2023 Marks available [Maximum mark: 1] Reference code 23M.1B.SL.TZ1.d
Level SL Paper 1B Time zone TZ1
Command term Predict Question number d Adapted from N/A
d.
[Maximum mark: 1]
23M.1B.SL.TZ1.d

The same apparatus was used in another experiment, but the potted plant was exposed to light. Predict with a reason the results for lime water in flask C after one hour.

[1]

Markscheme

no change/limewater stays clear
OR
because plant takes in carbon dioxide by photosynthesis;

Do not accept references to oxygen produced by photosynthesis

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