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Cell Energy: Cellular Respiration. Cellular Respiration. The process where stored energy is converted to a usable form. Oxygen and glucose are converted to carbon dioxide, water, and ATP. Cellular Respiration Equation. (Opposite of photosynthesis) O 2 + C 6 H 12 O 6  CO 2 + H 2 O + ATP

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Presentation Transcript
cellular respiration
Cellular Respiration
  • The process where stored energy is converted to a usable form.
  • Oxygen and glucose are converted to carbon dioxide, water, and ATP.
cellular respiration equation
Cellular Respiration Equation
  • (Opposite of photosynthesis)

O2 + C6H12O6 CO2 + H2O + ATP

(oxygen) + (glucose)  (carbon dioxide) + (water) + (energy)

why is cellular respiration important
Why is cellular respiration important?
  • Cellular respiration is the process organisms use to obtain energy from the food they eat.
  • Cells use the energy from cellular respiration for growth, repair, and maintenance.
glycolysis glucose breaking
Glycolysis (“Glucose-Breaking”)
  • Takes place in the cytoplasm
  • The glucose molecule is broken into two pieces.
  • Glucose is converted to pyruvic acid: this conversion produces 2 ATP molecules.
aerobic respiration
Aerobic Respiration
  • “Aerobic” means “with oxygen”
  • Oxygen is required for these processes to occur: it is the final acceptor of electrons
  • 34 ATP are produced
  • Krebs cycle & the electron transport chain.
mitochondrion the powerhouse of the cell
MitochondrionThe “Powerhouse of the Cell”
  • Aerobic respiration takes place in the mitochondrion.
  • This is where most of the ATP is produced.
  • http://cyberbio.mit.edu:8001/esgbio/cb/org/mito.gif
cellular respiration pathways
Cellular Respiration: Pathways

Glucose

Glycolysis

2 ATP

Without oxygen

With oxygen

Anaerobic Respiration

(fermentation)

Aerobic Respiration

34 ATP

No additional ATP