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