Cellular Respiration

Card Set Information

Author:
michaelirby98
ID:
268561
Filename:
Cellular Respiration
Updated:
2014-03-30 23:44:09
Tags:
Cellular Respiraiton Microbiology
Folders:
Micro
Description:
Cellular Respiration
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user michaelirby98 on FreezingBlue Flashcards. What would you like to do?


  1. Cellular Respiration
    • Glucose is completely broken down
    • May be aerobic or anaerobic 
    • Results in inorganic end products (CO2, H2O)
  2. Two types of cellular respiration
    • Anaerobic- Final acceptor is inorganic cmpd
    • Aerobic- Final acceptor is always O2 (inorganic)
  3. 4 Major steps to Aerobic Respiration
    • 1. Glycolysis
    • 2. Intermediate Step
    • 3. Krebs Cycle
    • 4. Electron Transport Chain (ETC)
  4. Gylcolysis
    • The oxidation of glucose into 2 pyruvate.
    • First stage of carbohydrate catabolism
    • Occurs in most living cells 
    • Type of substrate-level phosphorylation
  5. 2 steps to glycolysis
    • Prep stage
    • Energy conserving stage
  6. Preparatory stage of glycolysis
    • Energy investment stage (2ATP)
    • Glucose uses 1 ATP to turn into Glucose 6-Phosphate 
    • It is then converted into Fructose 6-Phosphate
    • Uses the 1 ATP to make Fructose1 6Diphosphate
  7. Energy conserving stage
    • Second step of glycolysis
    • Produces 4ATP/ Net gain of 2
    • Final end product is 2 pyruvate
    • 2 NADH are produced
  8. Intermediate Step
    • The step between glycolysis and Krebs cycle
    • Preps pyruvate for Krebs Cycle through decarboxylation 
    • Pyruvate is reduced by NAD+ making NADH
    • CoA performs dexcarboxylation (-CO2)
    • Pyruvate ->Acetyl groups +CoA = Acetyl CoA

  9. What is produced from the intermediate step?
    • 2 CO2
    • 2 Aceytal CoA
    • 2 molecules of NADH
  10. Decarboxylation
    When the pyruvic acid (3C molecule) must lose one molecule of CO2 to become a 2 carbon cmpd.
  11. What goes into glycolysis? What comes out?
    • Goes in: Glucose, 2 NAD+, 2ATP
    • Comes out: 2pyruvate, 2NADH, 4ATP
  12. Krebs Cycle
    • AKA The Citric Acid Cycle 
    • Main purpose is to produce NADH and FADH2 (energy rich electron carriers for future ATP)
    • Substrate Level Phosphorylation -> ATP
    • Aerobic (Full Cycle)
  13. What goes in Krebs Cycle and what comes out for every Pyruvate?
    • Goes in: Acetyl CoA, 1 ADP, 3NAD+, 1FAD
    • Comes out: 3NADH, 1 ATP, 1FADH2, 2CO2
    •  
    • 1 Glucose -> 2 Pyruvate -> 2Acetyl CoA -> 2 spins of krebs cycle per glucose.
  14. Electron Transport Chain
    • Occur in inner mitochondrial membrane in eukaryotes
    • occurs in plasma membrane in prokaryotes
    • Type of oxidative phosphorylation because it carries (e-) through a series of carriers
    • Drives chemiosmotic generation of ATP
    • Final acceptor is O2 (necessary!)
  15. What goes in the ETC what comes out?
    • Goes in: ADP, NADH, FADH2, O(required)
    • Comes Out: ~34 ATP, H+, NAD+, FAD, H2O
  16. 4 Steps of Anaerobic Respiration
    • Glycolysis 
    • Intermediate step
    • Shortened Krebs and ETC
  17. Final Electron acceptors in Anaerobic Respiration
    Carbonate, Nitrate, Sulfate
  18. Fermentation
    • Anaerobic 
    • Substrate level phosphorylation 
    • 2 ATP from glycolysis 
    • FEA is an organic molecule 
    • Starts with end products of glycolysis
    • Two types
  19. Two types of fermentation
    • Lactic Acid Fermentation 
    • Alcoholic Fermentation
  20. Lactic Acid Fermentation
    • Pyruvate is the FEA
    • Pyruvate is reduced by NADH-> Lactic acid
    • Homolactic- lactic acid is the only end product (Yogurt)
    • Hterolactic- Lactic and other acids are produced (Cheese)
    • Gases my also be produced
  21. Alcoholic Fermentation
    • Begins with 2 pyruvate
    • Then converted into 2 acetaldehyde and 2 CO
    • The acetaldehyde is then reduced by NADH into 2 molecules of ethanol
  22. Glycolysis Review (#ATP, O2 required, phosphorylation, Final acceptor)
    • 2 ATP
    • No O2 required
    • Substrate Level Phosphorylation
    • FEA = N/A
  23. Krebs Review (#ATP, O2 required, phosphorylation, Final acceptor)
    • 2 ATP
    • No O2 required
    • Substrate level phosphorylation
    • FEA = N/A
  24. ETC Review (#ATP, O2 required, phosphorylation, Final acceptor)
    • 34 ATP
    • O2 REQUIRED
    • Oxidative Phosphorylation 
    • FEA = O2
  25. Anaerobic Respiration Review(#ATP, O2 required, phosphorylation, Final acceptor)
    • 32-34 ATP
    • No O2 required
    • Substrate level & Oxidative Phosphorylation 
    • FEA= Nitrate, Carbonate, Sulfate
  26. Fermentation Review(#ATP, O2 required, phosphorylation, Final acceptor)
    • 2 ATP
    • No O2 required 
    • Substrate level phosphorylation 
    • FEA = Pyruvate (lactic) or Acetaldehyde (alcoholic)

What would you like to do?

Home > Flashcards > Print Preview