Cellular Respiration

Cellular Respiration

YouTube Videos

https://www.youtube.com/watch?v=4Eo7JtRA7lg

Chemical Equation

C6H12 + 6O2 --> 6CO2 + 6H2O + ATP

Vocabulary

• Aerobic: Oxygen is present and results in larger amount of energy being produced

• Anaerobic: Lack oxygen but can still produce small amounts of cellular energy

• Fermentation: Anaerobic; Cells that don't have a mitochondria get their energy this way. Little ATP is produced (only 2 through glycolysis)

3 Parts of Cellular Respiration

• Glycolysis

• Krebs Cycle (Citric Acid Cycle)

• Electron Transport Chain (ETC)

Glycolysis

Anaerobic; This process happens in the cytoplasm. Glucose (6 C sugars) is converted to pyruvate (3 C sugars) and 2 NADH molecules (a coenzyme used for transporting electrons) Glycolysis produces 2 ATP molecules (net gain)

Krebs Cycle (Citric Acid Cycle)

Aerobic; This part happens in the mitochondria. Pyruvate is converted into CO2, 6NADH, and 2 FADH ( another coenzyme for transferring electrons). 2 ATP molecules are produced.

Electron Transport Chain (ETC)

Aerobic; Takes place in the mitochondria. NADH and FADH transport electrons and make NAD+. Oxygen is the final electron acceptor. NAD+ is used to power ATP (makes more ATP by adding phosphate to ADP). 34 ATP is made if the conditions are just right.