EASY
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IMPORTANT
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Find the correct descending order of percentage proportion of leucocytes in human blood.

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Important Questions on Body Fluids and Circulation

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Study the given figure and identify the cells labelled as A, B, C and D.
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Match the types of WBC listed under Column I with the shape of nucleus given under Column II and select the correct option from codes given below.
  Column I   Column II
(a) Neutrophils (i) Kidney-shaped
(b) Eosinophils (ii) S-shaped
(c) Basophils (iii) 3 to 5 lobes
(d) Monocytes (iv) 2 lobes
    (v) Disc-shaped
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Which of the following statements are incorrect?
(i) Leucocytes disintegrate in spleen and liver.
(ii) RBCs, WBCs and blood platelets are produced by bone marrow.
(iii) Neutrophils bring about destruction and detoxification of toxins of protein origin.
(iv) Important function of lymphocytes is to produce antibodies.
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Identify the following type of blood cells and mark the correct option.
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IMPORTANT
In the following table of human ABO blood groups, fill up the blanks (i), (ii), (iii) and (iv) from the options given below.
Blood group Antigens in RBCs Antibody in Plasma Donor groups
A A Anti-A A, O
B B Anti-B B, O
AB AB (ii) A, B, AB, O
O (i) (iii) (iv)