Cellular Respiration: What Food is For

We eat. But how is that food used by our cells for work? Well, it's quite an involved process, involving glycolysis, the Citric Acid Cycle and the Electron Transport Chain. This video provides some background and an overview of all of these processes. It can be a scary topic, but take a deep breath and find out where that oxygen goes! WARNING: contains protist and prokaryotic sexual references.


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Redox Relief:    • Chemistry Basics:  WTF is REDOX? 🐧🤔  

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VIDEO DETAILS

Cellular Respiration: What Food is For

General equation for cellular respiration:C6H12O6 + 6O2 --- 6CO2 + 6H2O

Show me the MONEY
Show me the GLUCOSE
Where We Spend Our Glucose:
70%: basal life processes
20%: physical activity
10%: digestion of food (postprandial thermogenesis)

Financial Analogy
Conversion Efficiency

Energy Conversions Produce HEAT

Antoine Lavoisier
Named oxygen (1778) and hydrogen (1783) and predicted silicon
Helped construct the metric system
Made the first extensive list of elements
Reformed chemical nomenclature
Discovered that mass remains constant even though the states of matter may change
"The Father of Modern Chemistry"

Cellular Respiration: The BIG PICTURE
Glycolysis
Mitochondria
Grooming of Pyruvate
The Citric Acid Cycle / Tricarboxylic Acid Cycle (TCA)
The Electron Transport Chain
ATP Synthase
Chemiosmosis

Analogy of ETC and ATP synthase with hydroelectric power plant

Efficiency of Aerobic Respiration
Efficiency of Anaerobic Respiration

Evolutionary importance