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Leaf Cross Section – Low Power

Leaf Cross Section – Low Power. Another leaf cross section, at lower power, showing the midrib (the large vascular bundle, or vein, in the middle of most leaves) A - xylem tissue B - phloem tissue C - upper epidermis D - lower epidermis.

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Leaf Cross Section – Low Power

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  1. Leaf Cross Section – Low Power Another leaf cross section, at lower power, showing the midrib (the large vascular bundle, or vein, in the middle of most leaves) A - xylem tissue B - phloem tissue C - upper epidermis D - lower epidermis http://gecko.gc.maricopa.edu/~lsola/bio182/labreview/leaf.htm

  2. A - palisade layer (= palisade mesophyll) B - spongy layer (= spongy mesophyll) C - stomate, showing the two guard cells in cross sectional view D – Upper Epidermis E – Lower Epidermis Note the chloroplasts (small, pinkish structures) and nucleus (larger, darker pink spot) in each cell of leaf mesophyll. Note the greater amount of air space between cells in spongy mesophyll. Leaf Cross Section D E http://gecko.gc.maricopa.edu/~lsola/bio182/labreview/leaf.htm

  3. Stomates and Epidermis Leaf surface, showing ordinary epidermal cells and a stoma. A - stoma (two guard cells and the pore between them; the pore is only present when the stoma is open) B - the pore of the stoma (opening between guard cells) C - one of the two guard cells http://gecko.gc.maricopa.edu/~lsola/bio182/labreview/leaf.htm

  4. Dicot Stem Cross Section Cambium Vascular Bundle Phloem Xylem Pith http://www.science.siu.edu/plant-biology/PLB117/JPEGs%20CD/0377.JPG

  5. Roots and Root Hairs http://www.gala-instrumente.de/images/05%20root%20hairs.jpg http://botit.botany.wisc.edu/images/130/Root/Grass_Seedling_root/Root_hair.html

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