What is true about RBCs in humans?
They carry about 20-25 per cent of carbon dioxide
They transport 99.5 per cent of oxygen
They transport about 80 per cent oxygen only and the rest 20 per cent of it is transported in dissolved state in blood plasma
They do not carry carbon dioxide at all
Haemoglobin is having maximum affinity with
carbon dioxide
carbon monoxide
oxygen
ammonia
How many molecules of oxygen can bind to a molecule of haemoglobin?
One
Two
Three
Four
Dead space air in man is
500mL
150mL
250mL
1.5L
When the oxygen supply to the tissue is inadequate,the condition is
dyspnea
hypoxia
asphyxia
apnea
The movement of chloride ions into erythrocytes from the plasma to maintain osmotic balance during transport of gases is known as
Chlorination
Hamburger phenomenon
Bicarbonate shift
Carbon dioxide transport
Carbon dioxide is transported in blood in the form of
haemoglobin
oxyhaemoglobin
carbonate
bicarbonate
The expiratory reserve volume will be
1000 mL
2000mL
4000mL
5000mL
Haemoglobin (Hb) is a
reproductive pigment
respiratory pigment
carbohydrate
fat
Dissociation curve of haemoglobin is
sigmoid
parabolic
straight line
hyperbolic
