Food Production: Declining Fish Stock and Sustainable Fishing 🎣 GCSE Biology Learning & Revision

Food Production: Declining Fish Stock and Sus...

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Circulatory System: Alveoli 🫁 GCSE Biology Learning & Revision

In this episode, we will discuss the alveoli in the circulatory system.Alveoli are microscopic air sacs within the lungs where the crucial exchange of oxygen and carbon dioxide occurs between air and blood through diffusion. Their structure is highly adapted for this vital proces ...  Show more

Transport in Cells: Transport in Cells 🧬 GCSE Biology Learning & Revision

In this episode, we look at transportation in cells. We will explain how substances move into and out of cells, highlighting three key mechanisms. Diffusion is described as the movement of particles from high to low concentration areas. Osmosis is presented as a specific type of ...  Show more

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