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In this video, we look at the kidneys. I start by discussing the three ways that water can leave the body. We then look at how the kidneys adjust the levels of molecules in the blood and then we finish by looking at how urea is made (for higher tier students).

This video is based on the AQA spec. This video may be appropriate for iGCSE / O Level Biology. Please consult your specification. The Amazon link above is an affiliate link. This provides a small commission which helps to support freesciencelessons. The cost remains the same to you. If you prefer not to use this, you can search Amazon for the Freesciencelessons workbooks.

Image credits:

Pasta "[ Ссылка ].jpg

By stu_spivack (bucatini al' amatriciana) [CC BY-SA 2.0 ([ Ссылка ])], via Wikimedia Commons"

Glass of water "[ Ссылка ]

By Derek Jensen (Tysto) [Public domain], from Wikimedia Commons"

Cold breath By Alain Wong alainwong - [ Ссылка ], CC0, [ Ссылка ]

Sweat By Minghong, CC BY-SA 3.0, [ Ссылка ]

Urinals By Kiwiev - Own work, CC0, [ Ссылка ]

Music credit:

Deliberate Thought by Kevin MacLeod is licensed under a Creative Commons Attribution licence ([ Ссылка ])
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Artist: [ Ссылка ]

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