This exam tips covers Exam Tips for Mitosis within Mitosis and the Cell Cycle for GCSE Biology. Cell division by mitosis, cell cycle phases, chromosome behavior, cytokinesis differences, stem cells, cancer, and practical investigations It is section 18 of 19 in this topic. Treat this as a marking guide for what examiners are looking for, not just a fact list.
Topic position
Section 18 of 19
Practice
18 questions
Recall
18 flashcards
💡 Exam Tips for Mitosis
🎯 Common Question Types
- "Describe the stages of mitosis" (4-6 marks)
- "Explain why mitosis is important for growth" (2-3 marks)
- "Calculate the number of cells after n divisions" (2-3 marks)
- "Compare mitosis and meiosis" (4-6 marks)
- "Identify the stage of mitosis from a microscope image" (1-2 marks)
📝 Key Command Words
- Describe: Say what happens at each stage — chromosome behaviour
- Explain: Say why — link DNA replication to identical cells
- Compare: Give similarities AND differences (use a table)
- Calculate: Use 2ⁿ formula, show working
⚠️ Common Mistakes to Avoid
- Saying "chromosomes duplicate during mitosis" — they duplicate in interphase (S phase)
- Confusing chromatids with chromosomes — after separation, chromatids become chromosomes
- Forgetting cytokinesis — mitosis is nuclear division only; cytokinesis splits the cell
- Saying mitosis produces 4 cells — that's meiosis; mitosis produces exactly 2
- Only giving "growth" as a reason — always mention repair AND asexual reproduction too