Cell Division: The Story of Growth and Repair
🔬 Cell Division: The Story of Growth and Repair
Every single day, your body performs one of the most remarkable processes in biology - creating perfect copies of itself! From the moment you were a single fertilized cell to your current complex multicellular form, mitosis has been working tirelessly. Your skin replaces itself every 2-3 weeks, your gut lining renews every 5 days, and cuts heal through this incredible process.
Mitosis is the foundation of growth in all multicellular organisms and is essential for tissue repair. Understanding how chromosomes are precisely duplicated and divided is crucial for GCSE Biology - this process appears in growth, healing, cancer studies, and plant propagation topics throughout your course!
Biology glossary
- Define mitosis
- Mitosis is the process of nuclear division that produces two genetically identical diploid cells from one diploid cell. It is used for growth and repair in multicellular organisms.
The cell cycle is the series of events that cells go through as they grow and divide. It has two main phases:
Earn the mark scheme marks
🧠 Memory Aid: Remembering the Stages of Mitosis
The IPMAT Mnemonic
Use IPMAT to remember the order of stages:
- I — Interphase (preparation: grow and copy DNA)
- P — Prophase (chromosomes condense, nuclear envelope breaks down)
- M — Metaphase (chromosomes move to the Middle)
- A — Anaphase (chromatids pulled Apart to opposite poles)
- T — Telophase (Two new nuclei form)
Sentence to help you remember: "I Picked My Apples Today"
Or: "I Passed My A-Level Test!"
Tip for Metaphase: "M for Middle" — chromosomes line up in the middle of the cell.
Tip for Anaphase: "A for Apart" — chromatids are pulled apart.
Tip for Telophase: "T for Two" — two new nuclei are formed.
Now try it yourself
Quiz · Question 1 of 24
What is mitosis?
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This topic in real past papers
Every real exam question we've found on mitosis and the cell cycle, with a full worked answer.