8.3 Cellular Respiration
  • Overall Goal: To completely break down glucose (too much energy) and transfer the energy to ATP (usable amount of energy).
  • Location: In the cytoplasm and mitochondria of all eukaryotic cells.
  • C6 H12 O6 +6O2------> 6CO2+6H2O+Energy
  • Cellular Respiration Occurs In Two Main Parts.
  1. Glycolysis
  2. Aerobic Respiration
Glycolysis
  • Glucose is broken down in cytoplasm through the process of glycolysis.
  • Two molecules of ATP and two molecules of NADH are formed for each molecule of glucose that is broken down.
  • Location: Cytoplasm.
  • Goal: To break glucose ($100) into 2 pyruvates ($50). Does not require oxygen therefore it is Anaerobic.
  • What goes in: Glucose +2 ATP's ("invetsed").
  • What comes out: 2 pyruvates ($50 each), 2 ATP's ($1) (net), 2 NADH's ($10)
  • 9 Step Process With 2 Phases:
  1. Energy consuming/ invetsing.
  2. Energy releasing.
  3. Glucose enters the cell by facilitated diffusion.
  4. 2 ATP's phosphorylate glucose which makes it more reactive.
  5. Glucose breaks down into two 3-Carbon molecules.