Lecture 32-Water and Sugar Transport in Plants | BIOLOGY 172 - Intro Biol - MCDB, Quizzes of Biology

Download Lecture 32-Water and Sugar Transport in Plants | BIOLOGY 172 - Intro Biol - MCDB and more Quizzes Biology in PDF only on Docsity! TERM 1 Plant Function DEFINITION 1 Harvest resources and concentrate them in cells and tissues Transport water, sugar and nutrients through vascular tissue TERM 2 Plant Tissues DEFINITION 2 1. Meristematic: Rapidly dividing for growth 2. Dermal Tissue: Secretes waxy cuticle (reduces evaporation) 3. Ground tissue: bulk of plant body, structural support 4.Vascular: long distance transport of water and nutrients -Xylem: Conduct water (thru tracheids) and ions from root to shoot -Phloem: Conduct sugar, amino acids through plant TERM 3 Vessel elements DEFINITION 3 A vessel element is one of the cell types found in xylem, the water conducting tissue of plants. Has perforations TERM 4 Phloem DEFINITION 4 In vascular plants, phloem is the living tissue that carries organic nutrients (known as photosynthate), in particular, glucose, a sugar, to all parts of the plant where needed. Has sieve-tube members and companion cells (provide materials to maintain the cytoplasm and plasma membrane of sieve tube) TERM 5 Sieve-tubes DEFINITION 5 Sieve tubes are mainly to transport sugars and nutrients up and down the plant. Lack organelles TERM 6 Xylem DEFINITION 6 In vascular plants, xylem is one of the two types of transport tissue, phloem being the other. TERM 7 transpiration DEFINITION 7 Transpiration is a process similar to evaporation. Plants acquire CO2, release O2 TERM 8 Water Potential DEFINITION 8 Water potential is the potential energy of water per unit volume relative to pure water in reference conditions. TERM 9 Osmosis DEFINITION 9 Osmosis is the movement of solvent molecules through a selectively-permeable membrane into a region of higher solute concentration, aiming to equalize the solute concentrations on the two sides. TERM 10 Turgor pressure DEFINITION 10 Turgor Pressure or turgidity is the main pressure of the cell contents against the cell wall in plant cells and bacteria cells, determined by the water content of the vacuole, resulting from osmotic pressure, i.e.