torturous information about the study of life

  1. Photosynthesis
    transforms light energy to chemical energy and uses carbon dioxide and water as starting materials. releases oxygen
  2. Chloroplasts are
    • light absorbing organelles
    • the site of photosynthesis
    • found mostly in interior cells of leaves
  3. chlorophyll
    the green color of chloroplasts
  4. Stomata
    tiny pores in leaves where carbon dioxide enters and oxygen exits
  5. Thylakoids
    membranous sacs suspended in the stroma (a thick fluid)
  6. Grana
    Thylakoids concentrated in stacks
  7. 6 CO2+ 6 H2O---> C6H12O6+ 6O2
    • light energy
    • Carbon dioxide+ water--->glucose+ oxygen gas         photosynthesis
  8. Light reaction
    chlorophyll in the thylakoid membranes absorbs solar energy, which is converted to ATP and NADPH
  9. Calvin cycle
    • uses the products of the light reactions to make sugar from carbon dioxide 
    • ATP provides energy for sugar synthesis
    • NADPH produced by light reactinos provides the high energy electrons that drive the synthesis of glucose fro carbon dioxide
  10. Chloroplasts are
    solarpowered sugar factories
  11. wavelength
    the distance between the crests of two adjacent waves
  12. Electromagnetic Spectrum
    Full range of radiotion
  13. Chlorophyll A
    participates directly in the light reactions and absorbs mainly blue-violet and red light
  14. Chlorophyll B
    absorbs mainly blue and orange light. Conveys absorbed energy to chlorophyll A
  15. Cartenoids
    absorb blue green light and absorb/dissipate excessive light energy that might damage chlorophyll
Card Set
torturous information about the study of life
Chapter 7