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STD 11 - 14. Breathing and exchange in gases — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 14. Breathing and exchange in gases1 Mark
MCQ
Which factors affect the dissociation of $O _{2}$ from $Hb$ ?
  • ✓
    $pH , pO _{2}, pCO _{2}$ and temperature
  • B
    Only $pH$
  • C
    Salinity, temperature and $pCO _{2}$
  • D
    $HCO _{3}^{-}$ions concentration, $pH$ and salinity
✓

Answer

Correct option: A.
$pH , pO _{2}, pCO _{2}$ and temperature
a
Factors responsible for the dissociation of oxygen from $Hb$ which occurs in the body tissues :  $(a)$ Low partial pressure of oxygen    $(c)$ High partial pressure of carbon dioxide    $(c)$ Low $pH$ $(d)$ High temperature

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