An oxygen molecule diffuses directly from the air in an alveolus to haemoglobin in a red blood cell.
What is the minimum number of cell surface membranes though which this molecule must pass?
A- 2
B- 3
C- 4
D- 5
ans is d:5 but howww ??????
DON'T FORGET TO MENTION THE REASON.
Thanks in advance =)
What is the minimum number of cell surface membranes though which this molecule must pass?
A- 2
B- 3
C- 4
D- 5
ans is d:5 but howww ??????
DON'T FORGET TO MENTION THE REASON.
Thanks in advance =)