1. Dismiss Notice
  2. Guest, be sure to check out How To Get Into Dental School, our free downloadable PDF with step-by-step details for dental school applicants!
    Dismiss Notice
  3. Dismiss Notice
  4. Download free Tapatalk for iPhone or Tapatalk for Android for your phone and follow the SDN forums with push notifications.
    Dismiss Notice

Lactic acid question........

Discussion in 'DAT Discussions' started by JustwantDDS, Aug 5, 2011.

  1. JustwantDDS

    JustwantDDS DrAMG
    7+ Year Member

    Joined:
    Jan 2, 2010
    Messages:
    664
    Likes Received:
    0
    Status:
    Dental Student
    [​IMG]

    doesn't it also make ATP?

    ATP/NAD+/lactate

    the whole point of NAD+ is to keep glycolysis going right...to make those 2ATP via substrate lvl phosphorylation........
    i chose B and its the right answer but then i got to thinking............:confused:
     
  2. Note: SDN Members do not see this ad.

  3. JustwantDDS

    JustwantDDS DrAMG
    7+ Year Member

    Joined:
    Jan 2, 2010
    Messages:
    664
    Likes Received:
    0
    Status:
    Dental Student
    oh from the pyruvate they gain lactate only i see

    ATP isnt from the pyruvate..........

    right?
     
  4. PooyaH

    2+ Year Member

    Joined:
    Apr 24, 2008
    Messages:
    804
    Likes Received:
    0
    Status:
    Pre-Dental
    No, ATP is formed via Glycolysis. lactate is formed to regenerate NAD+ so ATP formation could continue by Glycolysis.
     
  5. DancingKoala

    2+ Year Member

    Joined:
    May 27, 2011
    Messages:
    123
    Likes Received:
    0
    hm...I thought fermentation or whatever happens in anaerobic condition after pyruvate formation generates 2 ATP whereas aerobic (kreb cycle electron transport system) generates about 36 ATP.
     
  6. PooyaH

    2+ Year Member

    Joined:
    Apr 24, 2008
    Messages:
    804
    Likes Received:
    0
    Status:
    Pre-Dental
    You need to know that once 2 pyruvates are made from glucose, in the absence of oxygen they are shunted to fermentation or lactic acid formation. But ATP is NOT made during formation of lactate and ethanol. All they do is regenerating NAD+, so Glycolysis could go on, thus making a net of 2 ATP every time glucose is converted into 2 pyruvates.
     
  7. LetsGo2DSchool

    Removed 2+ Year Member

    Joined:
    Jul 11, 2009
    Messages:
    1,191
    Likes Received:
    4
    Status:
    Pre-Dental
    Another good thing to know is that the lactate will be stored in the liver and converted back to glucose when oxygen becomes available.
     
  8. PooyaH

    2+ Year Member

    Joined:
    Apr 24, 2008
    Messages:
    804
    Likes Received:
    0
    Status:
    Pre-Dental
    Cori Cycle it is my man.
     

Share This Page