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Answer» (a) | Simple epithelium | Compound epithelium | 1. It is composed of only one layer of cells.
2. It is mainly involved in the function of absorption and secretion.
3. It is present in the lining of the stomach, intestine. | 1. It is composed of many layers of cells.
2. It is mainly involved in the function of protection and has a limited role in absorption and secretion.
3. It is present in the lining of the pharynx and buccal cavity. |
(b) | Cardiac muscles | Striated muscles | 1. They are involuntary in function.
2. They are multi-nucleate and branched.
3. They are found only in the heart. | 1. They are voluntary in function.
2. They are multi-nucleate and unbranched.
3. They are found only in triceps, biceps, and limbs. |
(c)
| Dense regular connective tissues | Dense irregular connective tissues | 1. In dense regular connective tissues, collagen fibres are present in rows between parallel boundless fibres.
2. They are present in tendons and ligaments. | 1. In dense irregular connective tissues, fibres are arranged irregularly.
2. They are present in the skin. |
(d) | Adipose tissue | Blood tissue | 1. It is composed of collagen fibres, elastin fibres, fibroblasts, macrophages, and adipociytes.
2. It helps in the synthesis, storage, and metabolism of fats.
3. It is present beneath the skin. | 1. It is composed of RBCs, WBCs, platelets, and plasma.
2. It helps in the transportation of food, wastes, gases, and hormones.
3. It is present in the blood vessels. |
(e) | Simple glands | Compound glands | | 1. They contain isolated glandular cells. 2. They are unicellular. 3. Examples include goblet cells of the alimentary canal. | 1. They contain a cluster of secretory cells. 2. They are multicellular. 3. Examples include salivary glands. |
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