Biology Std 10-Function and location Study notes Physiology Organ Location Function Lenticels On the surface of old, Exchange of photosynthetic stems and respiratory gases Cuticle Wax like covering on Prevent Transpiration epidermis of leaves & green stems Mesophyll Cells Between the epidermal cells Traps light energy with the of the leaf. chloroplast present in them for photosynthesis Cambium Below the bark of the tree Increases the girth of the stem of leaf, stem and leaves/ Conducts water from the Innermost part of Vascular roots to the aerial parts of bundles plant. Phloem Found in the veins of leaf, Translocates the prepared stem and leaves /Periphery of food in the leaves to the the Vascular Bundles storage organs. Hydathodes Special openings on the leaf Guttation margin Guard Cells Between the epidermal cells Regulate the opening and of the leaf/ On either side of closing of the stoma stoma. Chloroplast In the cytoplasm of green Photosynthesis plant cells Thylakoids/ Grana In the chloroplast Site of Reaction Stroma Colourless ground substance Site of light independent present in the chloroplast reaction Minute openings(surrounded Diffusion of photosynthetic by guard cells) occurring in and respiratory gases , large number on the lower Transpiration surface of leaf
Biology Std 10-Function and location Study notes Physiology Organ Location Function Lenticels On the surface of old, stems Exchange of photosynthetic and respiratory gases Cuticle Wax like covering on epidermis of leaves & green stems Prevent Transpiration Mesophyll Cells Between the epidermal cells of the leaf. Traps light energy with the chloroplast present in them for photosynthesis Cambium Below the bark of the tree Increases the girth of the stem of leaf, stem and leaves/ Innermost part of Vascular bundles Conducts water from the roots to the aerial parts of plant. Phloem Found in the veins of leaf, stem and leaves /Periphery of the Vascular Bundles Translocates the prepared food in the leaves to the storage organs. Hydathodes Special openings on the leaf margin Guttation Guard Cells Between the epidermal cells of the leaf/ On either side of stoma. Regulate the opening and closing of the stoma Chloroplast In the cytoplasm of green plant cells Photosynthesis Thylakoids/ Grana In the chloroplast Site of Reaction Stroma Colourless ground substance present in the chloroplast Site of light independent reaction Minute openings(surrounded by guard cells) occurring in large number on the lower surface of leaf Diffusion of photosynthetic and respiratory gases , Transpiration
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