Bio 3400 - Lecture 3 PII

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  1. What type of reaction forms ATP
    Redox
  2. Electron donor
    Is oxidized
  3. Reduction potential
    Tendency to donate electrons
  4. Reduced substance of a redox couple with a...
    more negative redox potential donates electrons to the oxidized substance of a redox couple with a more positive redox potential
  5. Redox reactions can be...
    coupled
  6. What is the intermediate in an redox reaction called?
    A carrier
  7. Types of electron carrier
    • Prosthetic groups
    • Coenzymes (diffusable) - NAD+, NADP
  8. Basic structure of NAD+/NADH
    • Adenine nucleotide + [Nicotinamide nucleotide]+
    • NAD+ is reduced to NADH by protonation of the aromatic ring
  9. Difference between NAD+ and NADP+
    Hydroxyl on the 2' carbon or adenine
  10. E0' NAD+/NADH
    -0.32 V
  11. Energy rich compounds
    • PEP
    • 1,3-BPG
    • Acetyl phosohate
    • ATP
    • Acetyl-CoA
  12. Characteristics of long term energy storage compounds
    • Insoluble
    • Oxidizable
    • Polymers
  13. Examples of energy storage molecules in prokarya
    • - Glycogen
    •  - Poly-β-hydroxylbutyrate
    •  - Sulfar granules (elemental sulfur)
  14. Examples of energy storage molecules in eukarya
    • Starch
    • Lipids
  15. Two mechanisms of ATP synthesis
    • Fermentation
    • Respiration
  16. Fermentation
    Substrate level phosphorylation - ATP is directly synthesized from an energy rich intermediate
  17. Respiration
    Oxidative phosphorylation - ATP produced from proton motive force
  18. How is fermentation classified?
    By products formed
  19. Fermentation products
    • Ethanol
    • Acetic acid
    • Lactic Acid
    • Propanoic acid
    • Butyric acid
    • Butanol
  20. Aerobic respiration
    • Oxidation using O2 as the terminal electron acceptor
    • Rely on proton motive force for ATP
    • Higher energy than fermentation
  21. ATP synthase
    • Two component complex converting proton motive force into ATP
    • Reversible in certain conditions
  22. ATP synthase subunits
    • F1 - Multiprotein extramembrane complex
    • F0 - Intermembrane channel
  23. Citric acid cycle
    Pathway of pyruvate oxidation
  24. Products of the citric acid cycle
    • 6 waste CO2
    • NADH and FADH
    • (per one glucose)
  25. CAC + Glycolysis energetic compounds
    • 35 ATP per glucose
    •  - 30 from CAC, 8 from glycolysis
  26. How many ATP can NADH and FADH2 make?
    • NADH - 3
    • FADH - 2
  27. Anaerobic respiration
    Electron acceptors other than oxygen
  28. Prokaryotic synthesis of sugars
    Polysaccharides synthesized from activated glucose
  29. Types of activated glucose
    • Adenosine diphosphoglucose - Glycogen precursor
    • Uridine diphosphoglucose - Peptidoglycan precursor
  30. Protein involved in fatty acid synthesis
    Acyl carrier protein - Holds growing fatty acid as it is synthesized (2C at a time)
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Ant
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Bio 3400 - Lecture 3 PII
Updated:
2016-01-31 22:49:21
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