The blood group with antibody-a and antibody-b is

• B

• A

• O

• AB

Rate of heart beat is determined by

• Purkinje Fibres

• Papillary muscles

• SA-node

• AV-node

Heparin is synthesized in

• liver

• kidney

• saliva

• pancreas

Rh factor is present in

• all vertebrates

• all mammals

• all reptiles

• man and rhesus monkey only

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

The leucocytes contain which of the following in large quantity?

• Basophils

• Neutrophils

• Eosinophils

• Monocytes

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

Hamburger shift is also known as

• bicarbonate shift

• chloride shift

• potassium shift

• All of the above

• nervous tissue supplied to ventricles

• nervous tissue supplied to heart

• muscular tissue supplied to ventricle

• muscular tissue supplied to heart