Download Exam 2 Study Guide - Concepts of Botany | BIOL 221 and more Exams Biology in PDF only on Docsity! BIOL 221 – Concepts of Botany Spring 2009 – Dr. Hardy Concepts of Botany, page 1 of 4 Exam 2 Study Guide (Lecture Outlines) This is only to be used as a guide to my lecture content, and not as a substitute for study of original notes and assigned readings. Topic 07 Water in Plants I. Osmosis Terms: aquaporins, semi-permeable or selectively permeable membranes, hypotonic, hypertonic, isotonic. A. Movement into roots. B. Cell to cell movement. C. Apoplastic vs. symplastic movement II. Cohesion-Tension Theory for Bulk Transport of Water A. Water potential B. Transpiration Role of – 1. Water potential gradient 2. Tension 3. Cohesion 4. Adhesion 5. Stomata III. Role of water in plant growth in development A. In photosynthesis B. In growth (particularly cell expansion). C. The need for transpiration Topic 08 Tropisms and Hormones I. Tropisms A. Gravitropism Hormonal basis Ecological role B. Phototropism Hormonal basis Ecological role C. Thigmotropism Hormonal basis Ecological role BIOL 221 – Concepts of Botany Spring 2009 – Dr. Hardy Concepts of Botany, page 2 of 4 II. Turgor Movements A. Venus flytrap (Dionea) and sundews (Drosera) B. Sensitive plant (Mimosa pudica) C. Grass leaves and bulliform cells D. Sunflowers and “heliotropism” of “solar tracking” III. Hormones A. Auxins 1. Structure 2. Natural Function 3. Human applications B. Cytokinins 1. Structure 2. Natural Function 3. Human applications C. Gibberrellins 1. Structure 2. Natural Function 3. Human applications D. Ethylene 1. Structure 2. Natural Function 3. Human applications Topic 09 Photosynthesis I. Introduction A. Photosynthesis and respiration B. Leaf anatomy and its function in photosynthesis II. Light and Pigments A. The electromagnetic spectrum B. Action spectrum for photosynthesis (and the general concept of) C. Absorption spectrum for a pigment III. Details of photosynthetic reactions A. Light-dependent reactions B. Light-independent reactions IV. Further Practical Considerations and the Future of Photosynthesis and People
