WBI · Unit 2
WBI12 — Cells, Development, Biodiversity and Conservation
Free mapped visual lessons for WBI12, then mark with Pearson method/accuracy conventions — not a Cambridge default.
Study path
Learn WBI12 with mapped free lessons
MarkScheme's own Cambridge 9700 lessons, mapped onto WBI12 Cells, Development, Biodiversity and Conservation by idea family — not Pearson papers, not scraped notes. Learn the visual, then mark in Edexcel IAL dialect.
- 1. Open a lesson on the live diagram
- 2. Mark WBI12 (Pearson M/A)
- 3. Land back on the same lesson
7 live diagrams.
- 1.1The microscope in cell studiesOpens on the live diagram with Edexcel WBI12 context — then mark in Pearson dialect.
- 4.1Fluid mosaic membranesOpens on the live diagram with Edexcel WBI12 context — then mark in Pearson dialect.
- 5.1Replication and division of nuclei and cellsOpens on the live diagram with Edexcel WBI12 context — then mark in Pearson dialect.
- 10.1Infectious diseasesOpens on the live diagram with Edexcel WBI12 context — then mark in Pearson dialect.
- 16.1Passage of information from parents to offspringOpens on the live diagram with Edexcel WBI12 context — then mark in Pearson dialect.
- 17.1VariationOpens on the live diagram with Edexcel WBI12 context — then mark in Pearson dialect.
- 18.1ClassificationOpens on the live diagram with Edexcel WBI12 context — then mark in Pearson dialect.
Edexcel dialect
After a lesson — mark like Pearson marks
- Write the method line that earns the M mark — not only the final number.
- Keep exact forms until the question asks to approximate.
- Watch dependent accuracy: an early slip can wipe later A marks.
- Self-mark with a WBI12 scheme, then second-pass here.
Marking desk
Mark a WBI12 answer
After a visual lesson — practice answers and scanned scripts with Edexcel IAL Biology conventions.
Exam series
Typical IAL sittings for WBI12. Use your own QP/MS from Pearson or your school, then mark a practice answer here.
- January 2025
- June 2025
- October 2025
- January 2024
- June 2024
- October 2024
- January 2023
- June 2023
- October 2023
- January 2022
- June 2022
- October 2022