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Introduction |
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Every organism, whether its body is unicellular or multicellular, is capable of performing all vital functions such as respiration, ingestion, excretion and reproduction. |
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Classification of Plant Tissues |
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The plant body is made up of different kinds of tissues. |
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Meristematic Tissues (Meristems) |
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Found in the vascular cambium of dicot trees just beneath the bark. They are responsible for the increase in diameter of the stem. |
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Permanent Tissues |
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Permanent tissues are derived from meristematic tissues. They have lost the power of dividing, having attained their definite form and size. |
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Protective Tissues |
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Protective tissues are usually present in the outermost layer of the plant body such as leaves, stem and roots. |
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Complex Tissues |
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Complex tissues are made up of more than one type of cells and they work together as a unit. They transport water, salt and prepared food material to various parts of the plant body. |
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Animal Tissues |
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In higher animals including man, cells are organized into four types of tissues.They are Connective tissue, Muscular tissue, Nerves tissue, Epithelial tissue. |
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Epithelial Tissue |
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Cells are compact, plate-like with no inter-cellular spaces. It forms the outer layer of the skin and lines cavities and ducts. |
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Connective Tissue |
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Tissues and organs in a body must be supported and held in position. This function is performed by connective tissue, which binds organs and tissues together. |
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Muscular Tissue |
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Muscles of the body are made up of elongated muscle cells also known as muscle fibre. The movement of the body is brought about by the contraction and relaxation of contractile protein present in muscle cells. |
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Nervous Tissue |
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Muscles of the body are made up of elongated muscle cells also known as muscle fibre. The movement of the body is brought about by the contraction and relaxation of contractile protein present in muscle cells. |
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Question and Answers |
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Multiple Choice Questions |
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