Write a statement of observation about the diagram. Cellular Respiration: (Or, How to turn Glucose into ATP) Oxygen + Glucose => ATP + CO2 + Water What is ATP? ATP stands for Adenosine TriPhosphate. It looks like this: A-P-P-P There is a large amount of energy between the bonds of the phosphates….. How to make ATP The process of a Cell making ATP (energy) is called : Cellular Respiration Involves 3 steps: Glycolysis Kreb’s Cycle Electron Transport Chain Step 1 Glycolysis The first step of cellular respiration The process of breaking down glucose into pyruvic acid What is Glycolyis you ask??? Glycolysis : a series of chemical reactions that take place in the cytoplasm which results in going from Glucose ( 6 Carbons ) down to 2 molecules of Pyruvic Acid (3 Carbons) 2 Pyruvic Acids Count the carbons! REMINDER: Facilitated Diffusion is how the glucose gets into your cells! Glucose is helped across the membrane by transport proteins. Doesn’t require energy Energy Cost Glycolysis requires some energy to get started…..it costs the cell 2 ATPs to get started, but in the end 4 ATPs get made. This gives a net gain of 2 ATPs!!! Now what do we do with those Pyruvic Acids??? Now…move them into the Kreb’s Cycle of Course! Mitochondria: label the matrix and cristae Kreb’s Cycle Happens inside the mitochondria called the Matrix. Turns twice to process each glucose molecule Results in 2 more ATPs made!!! Krebs Cycle Con’t Also called the Citric Acid Cycle Look in your book at the diagram and answer the following….(p.227) Where is CO2 released? How many ATP’s are released? So…4 ATPs so far…where do the rest come in? Electron Transport Chain Last stage of Aerobic Respiration Takes place on the Cristae High energy electrons go back and forth between molecules 32 ATPs made here! Total ATP made The actual amount varies anywhere from 32 to 38 depending on what kind of cell and if other poisons or oxygen was present Fermentation When Cells don’t have enough oxygen for Cellular Respiration They do either Alcoholic or Lactic Acid as a byproduct Only 2 ATPs are made Please Summarize the picture.