Multiple Choice
Different respiratory pigments have different affinities for O2. The difference in O2 affinity of human fetal and maternal haemoglobin enables the transfer of O2 from the mother's blood to fetal blood in the placenta. For this to be possible
A) fetal haemoglobin has a lower affinity for O2 than maternal haemoglobin.
B) fetal haemoglobin and maternal haemoglobin have the same affinity for O2.
C) fetal O2 uptake takes place at lower partial pressures of O2 than maternal O2 uptake.
D) fetal haemoglobin binds oxygen irreversibly.
E) fetal O2 uptake takes place at higher partial pressures of O2 than maternal O2 uptake.
Correct Answer:
Verified
Correct Answer:
Verified
Q1: What is the only mammal bereft of
Q3: Protons are unable to pass through the
Q4: Along what kind of gradient do gasses
Q5: For crustaceans with gills housed in branchial
Q6: Gas exchange is<br>A) the production of ATP
Q7: Cutaneous gas exchange is<br>A) characteristic of annelids.<br>B)
Q8: An animal that had gill arches with
Q9: Respiratory pigments include a metallic ion. What
Q10: The presence of surfactant in mammalian lungs<br>A)
Q11: The following is a list of features