Question about oxygen in human... - Biology Forum

last updated by

Darby 13 years, 9 months ago

2 voices

1 reply

Author
Posts
- March 7, 2011 at 4:54 am #14604
  yj90
  Participant
  1. The % of hemoglobin bound with Oxygen is different at high and low carbon dioxide concentrations when the partial pressure of O2 equals 0mm Hg
  True or false??
  This should be false right…? if partial pressure is 0… Hb can’t bind to any oxygen in the first place… is my reasoning correct?
  2. 25% oxygen in human arterial blood consumed by tissue metabolism
  True or false
  i’m not sure if it’s actually 25%….. :S
  I would greatly appreciate any help!
  Thank you!
- March 7, 2011 at 8:48 pm #103800
  Darby
  Participant
  Hemoglobin affinity changes with pH, and HCO3 (CO2 in solution) concentration affects plasma pH, but I have no idea of how the numbers work.
  There’s very little tissue distribution from arteries – the linings are too thick, distribution happens from capillaries. Sounds like a trick question.
Author
Posts

You must be logged in to reply to this topic.