GEOB 102 Lecture Notes - Lecture 18: Phytoplankton, Decomposer, High High

• School: UBC
• Department: Geographical Biogeosciences
• Course: GEOB 102
• Professor: Greg Henry

Document Summary

All organisms in a given area interacing with the physical environment so that a low of energy leads to an exchange of materials(water, nutrients) between living and non-living parts. Photosynthesis: process by which plants(and other organisms) covert solar energy to chemical energy, also called carbon fixaion because gaseous carbon is ixed to a solid form(carbohydrate, co2(atmopshere) + h20(soil atmosphere) + solar energy(sun) -choh(glucose sugar)- +o2. Photosynthesis: fate of carbohydrates or glucose in plants. Convert to other carbon compounds(e. g leaves, roots, stem wood, seed) All using glucose and burning glucose as energy source. Respiraion: process in which carbohydrate is broken down to release chemical energy, opposite of photosynthesis, all organisms respre to live, choh- + o2(atmosphere) co2 +h2o(exhale/transipiraion) + chemical energy(biologically usable energy) Photosynthesis must be greater or equal to respiraion for plants to survive: when photosynthesis < respiraion, losses exceed gains and plant starves .