BIO 102 Lecture Notes - Lecture 15: Plant Anatomy, Root Cap, Abscission
8 Nov 2016
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Bio 102 lecture 15 plant anatomy and growth 2. When it is older, or less efficient it is cut off the plants in a controlled way. Plants that drop their leaves seasonally are decisious. Functions: anchor plants, absorb water and minerals, food (starch) storage, propagate or reproduce (some plants) Thimble shaped mass of cells at tip of root. Tiny 1 celled hair like extensions of epidermal cell located near tips of toot. Water and minerals enter into plants through root: The casparian strip seals between endodermal cells so that water can only travel through the cells and not around them, forcing symplastic movement. Apoplastic: through cell wall and intercellular spaces. Initiate growth from within older root on vascular tissue. Organize then grow out through the ground and epidermis. Tap root: 1 main root, continuation of primary root. Ideal for anchorage: penetration for deep water, storage area for food, ex.
