ECOL 182R- Midterm Exam Guide - Comprehensive Notes for the exam ( 20 pages long!)
5 Oct 2017
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Plant structure and function: the root and shoot systems of plants are specialized for harvesting the light, water, and nutrients required for performing photosynthesis. Plant nutrition and growth: plants lose water as an inevitable consequence of exchanging gases with the atmosphere. In this way, evaporation of water from leaves is responsible for the movement of water from roots to shoots: plants that occupy dry habitats have traits that limit the amount of water they lose to transpiration. Water moves by osmosis from xylem into sieve-tube elements near sources and cycles back to xylem near sinks: soil is a complex and dynamic mixture of inorganic particles such as clay and sand, organic matter, and organisms. Soil provides plants with oxygen, water, and nutrients as well as a physical substrate for anchoring and supporting the plant body: plants absorb nutrients in the form of ions.
