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Introduction to passive and active transport
Introduction to passive and active transport
Osmosis is the movement of water across a semi-permeable membrane from an area of low solute concentration to an area of high solute concentration. Osmosis helps regulate the flow of water in and out of cells, which is crucial to their function.
This YouTube video explains how river basins are formed.
This YouTube documentary highlights the ecological and socio-economic importance of the Tana River Basin in Kenya.
Secondary Active Transport in the Nephron.
Introduction to viruses
This 32 minute long YouTube video investigates the water contamination problems in Tanzania, with specific focus on Dar Es Salaam.
This 11 minute long YouTube video describes the various causes and types of water pollutants.
This YouTube video investigates what water pollution is and some examples and effects of water pollution.