2.3.3 Ground Tissue in Plant

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"Three types of ground tissues :", " Parenchyma Collenchyma Sclerenchyma " "• Living cells with nucleus at maturity • Primary cell walls are thin and flexible (consists of cellulose, hemicellulose and pectin) • Cells are loosely packed with intercellular air spaces", "Parenchyma's structure" "• Living cells with nucleus at maturity • Primary cell walls are unevenly thickened at corners (consists of cellulose, hemicellulose and pectin) • Cells are closely packed, no intercellular air spaces ", "Collenchyma's structure" "• Dead cells without nucleus at maturity • Secondary cell walls are evenly thickened and lignified (consists of cellulose, hemicellulose and lignin) • Cells are tightly packed together, no intercellular space ", "Sclerenchyma's structure" "", "Parenchyma" "", "Collenchyma" "", "Sclerenchyma" "Function of Parenchyma", " Store organic substances -> from large central vacuole Photosynthesis -> the mesophyll cells contain chloroplast Gaseous exchange -> due to large intercellular space Attract pollinator -> as some cells contain chromoplast" "Function of Collenchyma", " Support in herbaceous plant or young parts of plant Gives mechanical strength and flexibility – to allow the cell to expands as it grow" "Function of Sclerenchyma", "Support and protection from mechanical damage Provide mechanical strength and rigidity to the plant" "Which type of ground tissue mostly found in leaf, stem and root?", "Parenchyma" "Which type of ground tissue mostly found young parts of the plant shoot and petioles?", "Collenchyma" " Sclereid is a type of ___________ that is found in stones of cherry ", " Sclereid is a type of sclerenchyma that can be found in stones of cherry" " Fibre is a type of ____________ that can be found in wood or inner bark. ", " Fibre is a type of sclerenchyma that can be found in wood or inner bark."