Cellular Respiration

  1. Cellular respiration formula
    • glucose + oxygen -> carbon dioxide + water + energy
    • C6H12O6 + 6O2 -> 6CO2 + 6H2O + ATP
  2. Anaerobic respiration types
    • glycolysis
    • fermentation
  3. Anaerobic step 1: Glycolysis
    • occurs in both aerobic and anaerobic respiration
    • occurs in cytoplasm
    • converts a 6-carbon glucose into 2 3-carbon pyruvate molecules
  4. Mitochondria
    • if a cell has a nucleus, then it has a mitochondria and is called a eukaryote
    • if a cell has no nucleus, then it has no mitochondria and is called a prokaryote
    • mitochondrial matrix
  5. Step 2 of Anaerobic: pyruvate oxidation
    • connects glycolysis with Krebs cycle in mitochondrial matrix
    • Steps:
    • CO2 removed
    • Acetic acid forms
    • Co-enzyme A attaches to acetic acid -> acetyl co-A
  6. Stage 3 of Anaerobic: Krebs cycle/citric acid
    • occurs in mitochondrial matrix
    • occurs 2 times for every glucose molecule
    • cyclic sine one of the products of step 8 becomes a reactant for step 1
    • acetyl Co-A condenses with oxaloacetate to form citric acid
    • in 1 turn of the cycle, the 2 C atoms are released as CO2
    • citric acid is oxidized, NAD+ and FAD are reduced
    • Free E is transferred to ATP, NADH, and FADH2
  7. Stage 4 of Anaerobic: electron transport, chemiosmosis
    • same as in photosynthesis
    • e- are pulled down ETC
    • e released keeps H+ moving into H+ reservoir
    • fall back into matrix
    • drive synthesis of ATP
    • oxidative ATP synthesis
  8. Organisation of cristae
    organisation of inner membrane
  9. Anaerobic Fermentation
    • occur in glycolysis
    • 2 types: alcohol (plants)
    • lactate (animals)
Author
Alex16
ID
355493
Card Set
Cellular Respiration
Description
Updated