Rate of Respiration ... ? - Biology Forum

last updated by

b0bcat 17 years, 8 months ago

6 voices

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- March 18, 2007 at 11:15 pm #7208
  b0bcat
  Participant
  What controls the rate of respiration in humans? Oxygen or Carbon Dioxide or both? ❓
- March 19, 2007 at 11:10 am #70206
  pankaaj
  Participant
  I think co2.
  As it is first involved in the reaction.
- March 19, 2007 at 2:46 pm #70216
  Darby
  Participant
  Your hypothalamus tracks CO2 levels for your brain’s breathing control centers. Since CO2 is dissolved in the plasma, it’s easier to detect than oxygen, which is linked to proteins in the red blood cells.
- March 19, 2007 at 7:44 pm #70234
  Poison
  Participant
  Almost all of the O2 is carried by Hb. But this is not the same for CO2. So your answer is CO2.
- March 20, 2007 at 1:51 am #70253
  Jelanen
  Participant
  CO2 through blood pH. Lower pH means a greater amount of dissolved CO2 (as carbonic acid) so triggers an increase in respiration.
- March 21, 2007 at 12:19 pm #70326
  lochnessmonster
  Participant
  Carbon dioxide is carried through your plasma as Hydrogen Carbonate ions. As Hydrogen carbonate is an acid, this means that the pH can be detected. If there is a low pH detected by the hypothalmus then it tells you to respire more.
  I think :p
- March 23, 2007 at 4:32 am #70429
  b0bcat
  Participant
  Thanks for the info!
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