Differentiate between each of the following pairs with reference to the aspect asked within brackets:
(a) Erythrocytes and leucocyte (function)
(b) Artery and vein (direction of blood flow)
(c) Artery and vein (the type of blood primarily flowing through)
(d) Tricuspid and bicuspid valves (location).

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Solution

(a)

Erythrocytes Leucocytes

They function in the transport of oxygen throughout the body and in the removal of carbon dioxide from the body. They help in the defence of the body against disease-causing pathogens.

(b) An artery carries blood away from the heart whereas a vein brings blood towards the heart.
(c) An artery generally contains oxygenated blood whereas a vein generally carries deoxygenated blood.
(d) The tricuspid valve is located between the right atrium and right ventricle of the heart whereas a bicuspid valve is located between the left atrium and left ventricle of the heart.

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Similar questions

Q. Differentiate between member of given below pair with reference to phrase in brackets:
(f) Artery and vein
(type of blood primarily flowing through)

Q. Differentiate between the following.
i) Mitral valve and tricuspid valve (structure)
ii) Artery and vein (direction of blood flow)
iii) Right atrium and left atrium (nature of blood)

Complete the following statements by filling in the blanks from the choices given in the bracket.
(a) The blood vessel that begins and ends in capillaries is the ... (hepatic artery. Hepatic portal vein, hepatic vein)
(b) A blood vessel which has a small lumen and thick walls is (capillary, lymphatic duct, artery, venule)
(c) the valve which prevents backflow of blood in the veins and lymph vessels... (mitral valve, tricuspid valve, semilunar valve).

Q. State the true statements of the following:

(1)

Blood flowing in arteries is without high pressure.

(2)

Blood flowing in veins is without high pressure.

(3)

Veins have valves opening towards heart.

(4)

Arteries have valves opening towards heart.

Veins have valves which allow blood to flow only in one direction. Arteries do not have valves. Yet the blood flows in one direction only. Can you explain why?

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Erythrocytes	Leucocytes
They function in the transport of oxygen throughout the body and in the removal of carbon dioxide from the body.	They help in the defence of the body against disease-causing pathogens.