BIOL 102 Lecture Notes - Lecture 11: Electrochemical Gradient, Photophosphorylation, Radiant Energy
Document Summary
Photosynthesis - ability to use light to make large organic compounds. Photosynthesis occurs in prokaryotic and eukaryotic lineages. Symbiotic associations evolving and contributing to photosynthetic diversity. Using light energy to make own food. Cyanobacteria - one of the first organisms to release oxygen as a byproduct of photosynthesis. Some use light and different chemicals to make carbohydrates. Convert light energy into chemical energy that can be used to produce organic molecules which will be broken down in the mitochondria. Carbon appropriated into organic molecules storing energy. Organic molecules broken down releasing co2 + energy. Light energy flows through ecosystem and released as heat. Oxidation of glucose to co2 and water. Reduction of carbon dioxide forming glucose (positive delta g) Need input of energy for photosynthesis to occur. Cellular respiration occurs in the mitochondria and occurs during the day and night how plants obtain energy to do work.
