Question

62 Concepts of Biology Laboratory Manual 2298899 O ress Publishing Co. FIG. 8-2. MONOCOT STEM. Epidermis the outermost layer of cells. The epidermis is often covered by a waxy cuticle. Vascular Bundle the individual bundles contain both phloem and xylem. The vascular bundle is surrounded by a bundle sheath of fibers. The monocot stem contains several vascular bundles that are scattered throughout. 9999999333JJJJJJJJJJU DUUUUUUD0000 Sclerenchymathis tissue is found immediately inside the epidermis. The tissue forms a cylinder of thick-walled cells to support the stem. Parenchyma-found within the ring of sclerenchyma, the outermost cells of this tissue can photo synthesize while the remainder store food. This area of parenchyma is often called the ground tissue. 2) Herbaceous dicot stem The tissues in this stem are similar to the chose in the monocot stem.Collenchyma is the sup- porting tissue in this stem. Also, the arrangement of the vascular bundles is in a ring. Notice that the vascular bundles have no bundle sheaths surrounding them. Since the vascular bundles are arranged in a ring, the area of parenchyma and collenchyma outside the ring is called the cortex and the area of parenchyma within the ring is the pith. The parenchyma tissue between the vascular bundles forms the pith rays. a) Examine a prepared slide of a sunflower (Helianthus) stem. As you did for the mono cor, observe the slide on scanning, noticing the arrangement of the cells and tissues. Increase the magnification and identify the epidermis, the cortex made of collenchyma

Answer 1

Group Tissue -Xylem (meta) -Pholen Vascular bundle Hypodermida (made up of Colleneryma အကြောင်း Epidermis cells i