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Student Workbook

Page 107 - Activity 87: Diffusion and Cell Size

Page 18 Q6: A cell measuring 1x1x1 cm will have a SA of 6 cm squared and will have a surface area of 48 square centimetres (not 42). Apologies for the error.
The Teacher's Digital Edition is correct.

Page 110 - Activity 89: Water Movement in Plant Cells

Page 18 Q2(b) A= -400 B = -500 and water moves to the right.
The Teacher's Digital Edition is correct.

Model answers

Page 19 - Activity 91 (page 113)

Question 2:
Q2. There is an error in the plot for 0.25 mol dm-3 (change was plotted in error instead of % change). This affects the answers in questions 3.
Download the corrected graph here.

  • (a) Approximately 0.16 mol dm-3
  • (b) -365 kPa
  • (c) 0 kPa (answer unchanged)
  • (d) -365 kPa

Activity 30: Staining a Slide (page 40)

Page 9 of the Model Answers
Q3(b) H&E (not iodine)
TDE correct