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Cellular respiration is an aerobic process

This study explores the processes of cellular respiration, focusing on both aerobic and anaerobic mechanisms. Aerobic respiration involves glucose (C6H12O6) and oxygen (O2), producing carbon dioxide (CO2), water (H2O), and significant energy (ATP). Conversely, anaerobic respiration, such as fermentation in yeast, converts glucose into ethanol, CO2, and a smaller amount of energy. The experiment measures oxygen consumption during mouse exercise and CO2 production in germinating seeds, highlighting the efficiency of energy extraction under varying conditions.

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Cellular respiration is an aerobic process

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  1. Cellular respiration is anaerobic process • Cellular respiration is an • aerobic process • 1 C6H12O6 + 6O2 6CO2 + 6H2O + 38 ATP • glucose total energy • 􀁡oxygen-dependent (mice) • 􀁡carbon dioxide production (seeds

  2. Cellular Respiration • 􀁡Aerobic respiration • 􀁠Mice exercise • 􀁠Seed exercise • 􀁠Mitochondrion model • 􀁡Fermentation (anaerobic)Yeast exercise

  3. Measuring oxygen consumption ofmice exercise • Measuring oxygen consumption of • mice exercise • 1 C6H12O6 + 6 O2 6 CO2 + 6 H2O + 38 ATP • glucose total energy • 􀁡KOH pellets used to remove CO2 • 􀁡oxygen-consumption is measured • 􀁡Mass specific VO2 is determined • 􀁡Each group • 1 setup apparatus, run 3 trials, clean up • 2 determine average • 3 calculate class average

  4. CO2 productionby germinating seeds exercise • C6H12O6 + 6 O2 gives 6 CO2 + 6 H2O + 38 ATP • glucose total energy • Flask #􀁡1 germinating • 􀁡2 germinating-boil • Results after hr • 􀁡CO2 production, phenol red = yellow • 􀁡no CO2, phenol red = red

  5. Fermentation • 1 glucose with yeast gives 2 ethanol + 2 CO2 + energy • C6H12O6 C2H5OH 2 ATP • 􀁡Oxygen independent • 􀁡Alcoholic fermentation (yeast exercise

  6. Alcoholic fermentation ex. • Alcoholic fermentation ex. • 1 glucose 2 ethanol + 2 CO2 + 2 ATP • C6H12O6 C2H5OH energy • 20ml beaker solution = glucose + 0.5g yeast • 􀁡1 10% glucose • 􀁡2 1% glucose • 􀁡3 0% glucose • Expected Results • 􀁡most CO2 • 􀁡intermediate • 􀁡 no CO2

  7. Mitochondrion model • Mitochondrion model • 1 C6H12O6 + 6 O2 6 CO2 + 6 H2O + 38 ATP • glucose total energy • 􀁡Locate • 􀁠outer membrane • 􀁠inner membrane (Cristae) • 􀁠intermembrane space • 􀁠matrix • 􀁡Function: aerobic respiration, making ATP

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