Diffusion, Osmosis & Active Transport: The Differences скачать в хорошем качестве

Diffusion, Osmosis & Active Transport: The Differences

Confused by how stuff gets in and out of cells? Let’s fix that. In this video, we break down the three essential cellular transport mechanisms you need to know for your GCSE Biology exams: Diffusion, Osmosis, and Active Transport. We’ll look at how they work, the role of the concentration gradient, and real-world examples (like root hair cells and gas exchange) that often come up in exam questions. What we cover: Diffusion: Moving down the gradient (no energy required!). Osmosis: The specific movement of water through membranes. Active Transport: Moving against the gradient (why cells need ATP). Timestamps: 0:00 - Introduction to Cell Transport 0:24 - What is Diffusion? (High to Low) 1:30: Visking Tubing Experiment 2:10 - Osmosis Explained (Water Potential) 3:25 - Active Transport (Moving Against the Grain) 4:30 - Key Points to Remember About GCSE Biology: Providing short, 3-5 minute explainers to help you ace your GCSEs. No fluff—just the facts you need for an A* or Grade 9. Subscribe for more Biology revision: [ / @gcsebiology-videos ] #GCSEBiology #BiologyRevision #CellTransport #AQA #Edexcel #StudyGram