DP Biology (last assessment 2024)

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Question 22M.2.SL.TZ2.b

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Date May 2022 Marks available [Maximum mark: 1] Reference code 22M.2.SL.TZ2.b
Level SL Paper 2 Time zone TZ2
Command term Calculate Question number b Adapted from N/A
b.
[Maximum mark: 1]
22M.2.SL.TZ2.b

An oval-shaped stem cell cluster is shown in the micrograph.

[Source: Sontag, S., Förster, M., Seré, K. and Zenke, M., 2017. [online] Available at: https://bio-protocol.org/e2419 [Accessed
6 December 2019]. Source adapted.]

Calculate the maximum diameter of the stem cell cluster on the micrograph, showing your working and giving the units.

 

 

 

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[1]

Markscheme
  1. correct formula: 1.1cm = 500 μm, 2.7cm = length, 2.7×5001.1=Xμm;
  2. correct answer with unit: 1227μm;

Allow answer in range of 1150 μm to 1350 μm.

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