Q4 of 95 Page 94

Differentiate between members of each of the following pairs with reference to the aspect asked within brackets:

(a) Erythrocytes and leucocytes (function)


(b) Artery and vein (direction of blood flow)


(c) Artery and vein (type of blood primarily flowing through)


(d) Tricuspid and bicuspid valves (location).

(a)
















Erythrocytes



Leukocytes



a) Erythrocytes transport oxygen to various parts of the body.



b) Leukocyte engulf particle like solid substances like bacteria by phagocytosis.



b) It contains haemoglobin which readily combine with oxygen.



b) It contains antibodies which fights with the antigens.



(b)












Artery



Vein



In arteries, blood travels from heart to other organs in the body.



In veins , blood is carried from other organs to the heart.



(c)












Artery



Vein



In arteries , oxygenated blood flows from heart to other parts of body.



In veins , de oxygenated blood flows to the heart from other organs.



(d)












Tricuspid valve



Bicuspid valve



Tricuspid valve is present at the aperture between right auricle and right ventricle.



Bicuspid valve is present at the aperture between left auricle and left ventricle.



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