Biology Paper 1
Stem cells
Cell Biology training before the targeted original question drill.
Adaptive teaching card
Make it concrete
Analogy
Stem cells is like a living system solving a small survival problem: each part has a job, and the answer depends on how those jobs connect.
Why now: An analogy helps when the definition feels abstract.
Do this: Match each part of the analogy to the science idea.
Learn it
Stem cells are unspecialised cells that can differentiate.
Embryonic stem cells can become many different cell types.
Adult stem cells are more limited but can help repair tissues.