Question

Answer the following :

(a) What type of tissue is the blood?

(b) What are the components of blood ?

(c) Which component is called the matrix ?

(d) Give any two functions of blood

Answer 1

a. Blood- Blood is a fluid connective tissue that connects the different parts of the body to maintain continuity in the body. It is red-colored, viscous, sticky, and saltish vascular tissue that flows inside the blood vessel.

b. Components of blood-

Blood plasma-

1. The blood plasma is a liquid matrix of blood. It is pale yellow with 90 – 92% water, and 8 – 10% organic and inorganic substances.
2. It constitutes 55% of the total volume of blood. The organic substances of plasma are soluble proteins such as albumins, globulins, fibrinogen, glucose, amino acids, vitamins, lipids, hormones, enzymes, and waste materials like urea and uric acid.
3. The major types of soluble proteins such as albumins, globulins, and fibrinogen are called immunoglobulins.

Blood cells-

1. The blood plasma does not contain protein fibers but contains cells called blood cells or blood corpuscles.
2. There are three types of blood cells namely, Red blood cells or corpuscles, White blood cells or corpuscles, Blood platelets RBCs, and WBCs are living, while platelets and plasma are non-living.

c. Matrix- It is the liquid part of blood comprising 92% of water with salts, proteins, lipids, and glucose and is referred to as the matrix of the blood.

d. Functions of blood-

1. The blood is used to transport substances from one part to another part of the body.
2. The blood helps to maintain a proper concentration around the cells and inside the tissues.