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Cellular respiration formula
- glucose + oxygen -> carbon dioxide + water + energy
- C6H12O6 + 6O2 -> 6CO2 + 6H2O + ATP
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Anaerobic respiration types
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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
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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
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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
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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
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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
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Organisation of cristae
organisation of inner membrane
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Anaerobic Fermentation
- occur in glycolysis
- 2 types: alcohol (plants)
- lactate (animals)
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