Q938
Oxygen in our blood is transported by a protein named
A.
Keratin
B.
Myoglobi
C.
Collagen
D.
Haemoglobin
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
Hemoglobin, or Hb, is a protein molecule found in red blood cells (erythrocytes) made of four subunits: two alpha subunits and two beta subunits.