Review of Energy-Storing Processes: Photosynthesis and Chemosynthesis Only occurs in_____________. Chemosynthesis Certain bacteria can use the energy from volcanic compounds to produce energy- storing organic compounds. Chemosynthetic bacteria can be found at the hydrothermal vents at fault lines deep beneath the ocean. Chemosynthesis and photosynthesis both produce energy-storing molecules (food). In photosynthesis, the energy comes from the sun. While in chemosynthesis the energy comes from certain chemical such as sulfuric compounds from volcanoes. Location of Hydrothermal Vents Photosynthesis Uses the sun’s light energy to build a sugar from carbon dioxide and water. Overall formula: 6CO2 + 6 H2O _________________ Discuss with your table partner Chlorophyll is a pigment that absorb certain colors of light and reflects others. Analyze the graph below and determine which colors of light are reflected by chlorophyll (a and b) Absorbs _________ _________ Reflects __________ Chlorophyll is found in the chloroplast, which is the organelle that is the site of photosynthesis. 2 Parts of Photosynthesis: Light reactions: The “photo” part Uses sunlight to make_____. Calvin Cycle: The “synthesis” part ATP provided energy to produce_________. Textbook website video: http://my.hrw.com/hssc_2012/hmd_na_bio/nsmedia/animated/bio_ch04_0104_ab _photosyn.swf Photosynthesis Video http://www.youtube.com/watch?v=YeD9idmcX0w Overview of the role of ATP in Photosynthesis vs. Cellular Respiration In photosynthesis, ATP is produced as an __________ in the process of producing a sugar. • The sun’s light energy is used to make ATP in the light reactions, but then these ATP are used to produce a sugar. Sugars are more efficient than ATP for ______energy. Each glucose can be used to make 36 ATP in cellular respiration. This is like a barrista converting her tips to larger bills Overview of the role of ATP in Photosynthesis vs. Cellular Respiration In cellular respiration (and fermentation) the _________________________. • The larger amount of energy stored in food is converted into the ATP “energy currency”.