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Question 19N.3.SL.TZ0.1c

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Date November 2019 Marks available [Maximum mark: 2] Reference code 19N.3.SL.TZ0.1c
Level SL Paper 3 Time zone TZ0
Command term Evaluate Question number c Adapted from N/A
c.
[Maximum mark: 2]
19N.3.SL.TZ0.1c

An experiment was carried out on osmosis in carrot (Daucus carota) root tissue and potato (Solanum tuberosum) tuber tissue. Similar sized pieces of tissue were cut and soaked in different sucrose solutions for 24 hours. The results are shown in the graph below.

(c)

From the evidence provided by the graph, evaluate the reliability of these data.

[2]

Markscheme

a. the data show clear trends
OR
a trend line could be drawn through these data
OR
there are no outliers ✔

b. the error bars/standard deviations shown
OR
the error bars/standard deviations vary with concentration ✔

c. sample size is unknown ✔

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