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Describe the composition of blood.

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Question

Describe the composition of blood.

Long Answer
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Solution

Blood is a fluid connective tissue. In blood, cells move in a medium called blood plasma.

It is composed of following three types of blood cells:

  1. RBCs (red blood corpuscles) or erythrocytes.
  2. WBCs (white blood cells) or leucocytes.
  3. Platelets.

RBCs and WBCs are living, while plasma and platelets are non-living. Blood plasma is a complex fluid consisting of inorganic salts and organic compounds. Albumins, globulins, fibrinogen, glucose, amino acids, lipids, enzymes, hormones, and waste materials are the organic substance of plasma.

WBCs consist of phagocytes (granulocytes and agranular leucocytes) and immunocytes.

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Chapter 2: Tissues - Long Answer Type Questions [Page 89]

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P S Verma and V K Agarwal Biology Part 3 [English] Class 9
Chapter 2 Tissues
Long Answer Type Questions | Q 8. (i) | Page 89

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