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Energy Production

Energy Production. Photosynthesis and Cellular Respiration. Photosynthesis First The Basic Deal …. Raw Materials : Water and CO 2 Products: Sugar and Oxygen Raw materials enter the leaf cells and the products leave the leaf cells. Autotrophs. Autotrophs.

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Energy Production

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  1. Energy Production Photosynthesis and Cellular Respiration

  2. Photosynthesis FirstThe Basic Deal… Raw Materials : Water and CO2 Products: Sugar and Oxygen Raw materials enter the leaf cells and the products leave the leaf cells.

  3. Autotrophs

  4. Autotrophs • Autotrophs are organisms that produce their own glucose, mostly through photosynthesis. • Heterotrophs are organisms that obtain food by eating autotrophs or other heterotrophs. • All life depends on autotrophs!

  5. Chloroplasts

  6. Basic Details of Photosynthesis

  7. Basic Details of Photosynthesis • Photo is the Greek word for “light”. • Synthesis is the Greek word for “putting together. • “Using light to put something together.” • Overall equation: • 6 CO2 + 6 H2O + light energy → C6H12O6 + 6 O2 • Two part process: • Light Reactions and Calvin Cycle

  8. Pigments

  9. Pigments

  10. Pigments • Chlorophylls are greenish pigments • There are several kinds of chlorophyll, the most important being chlorophyll "a". • Carotenoids are usually red, orange, or yellow pigments, and include the familiar compound carotene, which gives carrots their color. • Anthocyanins are usually red pigments. • Phycobilins are water-soluble pigments, and are therefore found in the cytoplasm, or in the stroma of the chloroplast. They occur only in Cyanobacteria and Rhodophyta.

  11. Cellular Respiration Now what happens with the glucose?

  12. The Basic Deal Raw Materials : Glucose, and Oxygen Products: CO2, H2O, and ATP Raw materials enter the Mitochondria and Products leave the Mitochondria.

  13. Mitochondria

  14. Two Types of Cellular Respiration

  15. Two Types of Cellular Respiration • Aerobic Respiration • Requires oxygen in order to produce ATP • Anaerobic Respiration • Does not require oxygen in order to produce ATP • Includes fermentation

  16. Basic Details of Aerobic Respiration

  17. Basic Details of Aerobic Respiration Overall equation: • C6H12O6 + 6 O2 → 6 CO2 + 6 H2O + ATP • Three part process: • Glycolysis – Breaks Down Glucose • Krebs Cycle – Strips down molecule • ETC – Makes ATP

  18. Basic Details of Anaerobic Respiration

  19. Basic Details of Anaerobic Respiration • C6H12O6 (glucose) 2 C3H6O3 (lactic acid) • No ETC • Just Glycolysis • In some plant cells and yeasts, fermentation produces CO2 and ethanol. The conversion of pyruvate to acetaldehyde generates CO2 and the conversion of acetaldehyde to ethanol

  20. Relationship

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