How do plants aid in climate regulation/control? (The role of transpiration in the regulation of atmospheric water) What are the perspectives with respect to world climate changes considering deforestation is taking place?
Area of Interaction/área de interacción
Approaches to Learning
Environment
Aims/objetivos
Students should:
Identify root hair cells as seen under the light microscope and describe their functions.
Describe the passage of water through root, stem and leaf.
Define transpiration.
Describe: how water vapor loss is related to cell surfaces, air spaces and stomata the effects of variation of temperature, humidity and light intensity on transpiration rate how wilting occurs.
Define translocation in terms of the movement of sucrose and amino acids from regions of production or of storage to regions of utilization in respiration or growth.
Describe the mechanism of water uptake and movement in terms of 'pull' from above, creating a water potential gradient through the plant.
Describe the adaptations of the leaf, stem and root to different environments, with emphasis on local examples.
Describe translocation throughout the plant of applied chemicals, including systemic pesticides.
Content/contenido
Transport in plants and the vessels found. Determine which substances are transported, where and how.
Summative task / evaluación final
Exam to demonstrate and apply acquired knowledge. Lab reports
