Tissues
Biology · ऊतक · 12 facts
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Tissue: group of similar cells performing specific function
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Plant tissues: Meristematic(dividing) and Permanent(mature)
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Meristematic: tips of roots/shoots; actively dividing
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Parenchyma: most common; stores food; thin cell walls
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Collenchyma: provides flexibility; found below epidermis
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Sclerenchyma: dead cells; hard; provides rigidity (coconut husk)
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Xylem: transports water+minerals upward (root to leaf)
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Phloem: transports food downward (leaf to other parts)
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Animal tissues: Epithelial, Connective, Muscular, Nervous
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Epithelial: body covering; skin, lining of organs
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Connective: bone, blood, cartilage, tendons, ligaments
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Blood is liquid connective tissue; bone is hardest