Root and Stem Headings Vocabulary Important Info 1
Root and Stem Headings Vocabulary Important Info
1. Functions: a. anchor plants b. absorb water c. store food: tubers (potatoes, carrots, beets) d. may produce runners which grow into new plants
2. Structures: a. Root Hairs tiny hairs that absorb water and minerals b. Cortex-bulk of root, transports water to vascular core Cortex c. Parenchyma-makes up cortex, may act as storage Parenchyma d. Vascular cylinder-xylem and phloem of the root cylinder e. Endodermis-single cell layer that controls flow of water Endodermis into vascular bundle f. Apical Meristem-where Meristem growth occurs g. Root capcap protective covering over end of root
Left Page (draw later) Figure 23– 7 Page 585 The Structure of a Root Epidermis Endodermis cortex Root hairs Ground tissue (cortex) Phloem Xylem Vascular Cylinder Ground tissue (cortex) Epidermis Endodermis Vascular cylinder Zone of maturation Zone of elongation Apical meristem Root cap Cross Section of Plant Root (magnification: 40 x)
1. Functions: Stems a. Transport food and water b. Support growth above ground 2. Types: a. Herbaceous soft, fleshy stems b. Woody-hard stems, produce Woody growth rings, have bark c. Monocot stems-vascular stems bundles are scattered d. Dicot stems-vascular bundles stems concentrated in the cortex
Quick Quiz Stem & Root
1. Plants are _____, _____ autotrophs A. multicellular, prokaryotes C. multicellular, eukaryotes 2. B. unicellular, prokaryotes D. unicellular, eukaryotes Which of the following is NOT a function of roots? a. anchor plants b. absorb water c. store food d. undergo photosynthesis 3. Plants w/o vessels for water & mineral transport are ___? a. Vascular b. Non. Vascular c. Roots d. Stems 4. A _____ is a single cell layer that controls flow of water into vascular bundle. a. Apical meristem c. Root Cap b. Endodermis d. Sporophyte
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