Biology Paper 1
Transport in cells
Cell Biology training before the targeted original question drill.
Adaptive teaching card
Make it concrete
Analogy
Transport in 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
Diffusion is the net movement from higher to lower concentration.
Osmosis is water movement through a partially permeable membrane.
Active transport moves substances against a concentration gradient using energy.