CBSE
How many molecules of oxygen can bind to a molecule of haemoglobin?
One
Two
Three
Four
Which of following organ can be called a sort of "blood bank" ?
Heart
Spleen
Liver
Lungs
A man of 'A' blood group marries a woman of 'AB' blood group, which type of progeny would indicate that man is heterozygous ?
O
B
A
AB
The instrument used for measuring blood pressure is
electrocardiograph
X-rays
sphygmomanometer
electroencephalograph
Pernicious anaemia is caused due to
absence of vitamin-K
lack of Vitamin - B12
lack of Vitamin - C
presence of intrinsic factor
The vitamin which is essential for blood clotting is
vitamin-A
vitamin-B
vitamin-C
vitamin-K
In blood, CO2 is transported majorly as
sodium carbonate
carboxyhaemoglobin
bicarbonate
CO2 as such
Heart beats originates from
pace maker
cardiac muscles
left atrium
right ventricle
Vitamin essential for proper functioning of liver and clotting of blood is
Vitamin- K
Vitamin- A
Vitamin- E
Vitamin- B12
Pace-maker is
AV node
SA node
Bundle of His
Purkinje fibres