Which is the principal cation in the plasma of the blood?
Magnesium
Sodium
Potassium
Calcium
Sickle cell anaemia is due to
Change of amino acid in -chain of haemoglobin
Change of amino acid in β -chain of haemoglobin
Change of amino acid in both and β chains of haemoglobin
Change of amino acid in either or β -chain of haemoglobin
Short-lived immunity acquired from mother to foetus across placenta or through mother's milk to the infant is categorised as
cellular immunity
innate non-specific immunity
active immunity
passive immunity
RBCs do not occur in
frog
cow
camel
cockroach
Damage to thymus in a child may lead to
a reduction in haemoglobin content of blood
a reduction in stem cell production
loss of antibody mediated immunity
loss of cell mediated immunity
Sickle cell anaemia is characterised by
leukemia
polycythemia
mental retardation
haemolytic anaemia
In the ABO system of blood groups, if both antigens are present but no antibody, the blood group of the individual would be.
B
O
AB
A
Antibodies in our body are complex
lipoproteins
steroids
prostaglandins
glycoproteins
Which one of the following statements about blood constituents and transport of respiratory gases is most accurate?
RBCs transport oxygen whereas WBCs transport Co2
RBCs transport oxygen whereas plasma transports only CO2
RBCs as well as WBCs transport both oxygen and Co2
RBCs as well as plasma transport both oxygen and CO2
Examination of blood of a person suspected of having anaemia, shows large, immature, nucleated erythrocytes without haemoglobin. Supplementing his diet with which of the following, is likely to alleviate his symptoms?
Thiamine
Folic acid and cobalamin
Riboflavin
Iron compounds
