Question

Give a brief account on blood.

Answer 1

• Blood is a fluid connective tissue present in humans and other animals.
• It main function is to carry nutrients and oxygen to the cells and transports metabolic waste products away from those same cells.
• In humans, it is composed of blood cells suspended in blood plasma.
• Plasma contains 55% of blood fluid which is mostly water and also contains proteins, glucose, mineral ions, hormones, carbon dioxide and blood cell.
• The blood cells are:-

1) Red blood cells or RBCs or erythrocytes

2) White blood cells or WBCs or leukocytes

3) Platelets or thrombocytes