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Be Smart.

Be Smart.

The Stunning Cycles of Carbon and Oxygen In Your Body

Be Smart. · Nov 14, 2026 · 3:48

0:003:48

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Click here to dig deeper into Oxygen: http://youtu.be/1PmD2GWB4u4
Click here to dig deeper into Carbon: http://youtu.be/1PmD2GWB4u4?t=47s
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OXYGEN:
Electron transport chain (O2 to water): http://en.wikipedia.org/wiki/Electron_transport_chain

How Sam Ruben discovered that the oxygen that plants exhale comes from water, and not CO2: http://bit.ly/1vv1p0n

CARBON:
How plants convert CO2 into carbohydrates: http://en.wikipedia.org/wiki/Light-independent_reactions

Carbohydrates turn into pyruvate: http://en.wikipedia.org/wiki/Glycolysis

Pyruvate powers the citric acid cycle, turning to CO2: http://en.wikipedia.org/wiki/Citric_acid_cycle

Joe Hanson - Host and writer
Joe Nicolosi - Director
Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer
Katie Graham - Director of Photography
Andrew Matthews - Editor and motion graphics
John Knudsen - Gaffer

Music: "Ouroboros" by Kevin MacLeod

Stock images via Shutterstock

Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios

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