Adult & Fetal Haemoglobin

Question 1

What is adult and fetal haemaglobin?

Answer 1

higher affinity for O2 than adult haemaglobin
fetal haemaglobin takes up o2 at lower partial pressures of o2

placenta has a lower partial pressure of o2 (some o2 has been used by mother for respiration)

at this lower partial pressure, adult haemaglobin would dissociate (unload) its O2

fetal haemaglobin does not - can deliver o2 to fetus for respiration

Question 2

What is the order of the fetul and adult haemaglobin and adult myoglobin?

Answer 2

adult myoglobin, then fetul haemaglobin and then adult haemaglobin