Which of the following blood cells are mainly responsible for the transport of oxygen?
a) white blood cells
b) red blood cells
c) blood platelets
d) all of these
Explanation: it contains haemoglobin to which oxygen can bind
How much percentage of oxygen is transported by red blood cells as oxyhaemoglobin?
a) 30
b) 73
c) 87
d) 97
Explanation: oxyhaemoglobin= oxygen + haemoglobin
How much percentage of oxygen is transported by plasma as dissolved oxygen?
a) 10
b) 7
c) 8
d) 3
Explanation: small amount of oxygen is dissolved in plasma since oxygen has such a low solubility.
The binding of oxygen with haemoglobin is a reversible and is done in the presence of enzymes………
a) pancreatic protease
b) carbolic anhydrase
c) oxidoreductase
d) pepsin
Explanation: This enzyme was first identified in 1933, in red blood cells of cows.
Each molecule of haemoglobin can bin with how many molecules of oxygen to oxyhaemoglobin?
a) two
b) three
c) four
d)five
Explanation: Hb + 4O2 à Hb4O2
The ability of ………to bind with oxygen is called oxygen carrying capacity of blood.
a) red blood cells
b) myoglobin
c) haemoglobin
d) plasma proteins
Explanation: Haemoglobin (Hb) is a protein found in the red blood cells that carries oxygen in your body and gives blood its red colour.
