* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Chapter 9 Notes CELLULAR RESPIRATION “Spendable Energy” Cellular Respiration Chemical process that releases ATP energy from food energy. Happens in the mitochondria of cells. C6H12O6 + O2 (glucose) CO2 + H2O (oxygen) (carbon dioxide) (water) Molecules involved… Food contains energy Burrito: protein, carbohydrates, lipids Proteins amino acids ATP Carbs simple sugars ATP Lipids glycerol/fatty acids ATP ATP is the raw, usable energy that cells can use to function and live. Calories Energy that we obtain from food is measured in calories. 1 calorie = amount of energy needed to raise 1 gram of water by 1 degree C. Our food packages show kilocalories (or Calories) = 1000 calories. A peanut (5 Cal) will burn to yield enough energy to raise 1000 g of water by 5 degrees. Steps in Respiration 1. Glycolysis -- glucose is broken in half. (if oxygen is present) 2. Krebs Cycle – carbon dioxide is produced from broken glucose. (if oxygen is present) 3. Electron Transport Chain -- large amount of ATP is produced. (“aerobic”) (if no oxygen) 2. Lactic acid fermentation. (“anaerobic”) -- OR -(if no oxygen) 2. Alcoholic fermentation.