Stem Cells: Body's Shape-Shifting Repair Workers
Year 11 Biology Understanding the body's amazing repair system From unspecialised to specialised
What Do You Think Cells Are?
Think about the building blocks of your body What makes them so important? Are all cells the same?
Meet the Shape-Shifters: Stem Cells
Unspecialised cells that can become anything Like plasticine that can be shaped into different objects Most other cells are 'locked' into their job Stem cells can 'choose' what to become
The Plasticine Analogy
Start with a ball of clay (stem cell) Shape it into different cell types: • Muscle cell (long and thin) • Nerve cell (branched like a tree) • Blood cell (round and smooth)
Stem Cells: The Body's Repair Workshop
When you get a cut, stem cells rush to help They transform into skin cells to heal the wound They can become blood cells to replace lost blood Like having a repair team that can fix anything!
Where Do We Find Stem Cells?
{"left":"Bone marrow (inside your bones)\nFat tissue\nBlood\nEmbryos (very early development)","right":"Umbilical cord\nSome organs like the brain\nSkin\nMuscles"}
Amazing Medical Uses
Treating blood diseases like leukemia Repairing damaged heart muscle Growing new skin for burn victims Potentially treating spinal cord injuries The future: growing whole organs!
Quick Check: What Have We Learned?
1. What is a stem cell? 2. What makes stem cells special compared to other cells? 3. Name one way stem cells help in medicine 4. Complete this analogy: Stem cells are like _______ because...