BIOL 1201 Chapter : Biology 1202 Chapter 35
Document Summary
Chapter 35 plant structure, growth, and development. Plants draw nutrients from two very different environments: above ground (shoot system, below ground (root system) Absorb minerals and water: absorption occurs near root tips, root hairs increase surface area of root. Axillary buds (potential to form lateral shoot) Terminal bud (located at shoot tip, causes elongation of a young shoot) Main photosynthetic organ of most vascular plants. Petiole (joins leaf to a node of a stem) There are three different kinds of leaves: simple, compound, doubly compound. Simple leaf single, undivided blade; some may have deep lobes. Doubly compound each leaflet is divided into smaller leaflets. Vascular carries out transport of materials between roots and shoots: xylem, phloem. Ground tissue various functions including storage, photosynthesis, and support. Parenchyma thin, flexible 1 cell walls; alive at maturity; carry out most metabolism within plant. Collenchyma unevenly thickened but flexible 1 cell walls; alive at maturity; supports young growing stems.
