LIFESCI 2 Chapter Notes - Chapter 8: Purple Sulfur Bacteria, Electromagnetic Spectrum, London Academy Of Music And Dramatic Art
Document Summary
Photosynthesis: the biochemical process by which plants convert light energy into chemical energy, it is the very basis of life on earth, its chemical reaction is. 6 co2 + 12 h2o + light energy (+686 kcal/mol) c6h12o6 + 6 o2 + 6h20: organisms that photosynthesize: plants, multicellular algae, unicellular protest, cyanobacteria, purple sulfur bacteria. What is the visible light: the waves that can be detected by the human eye in various colors is called visible light, when light meets matter it may be. Photons: when a photon reaches a molecule. May be absorbed: if absorbed, the pigment will acquire the energy of the photon. Molecule moves from the ground state to the excited state: acquiring the energy bumps an electron to a higher shell, this makes the electron less attracted to the nucleus and therefore the molecule becomes more reactive. Resources: plants get water from the roots and brought up via the xylem, carbon dioxide comes through the stoma.
