Cellular Respiration What we do with our energy

Anaerobic vs. aerobic Uses no oxygen Makes a little energy Uses oxygen Makes a lot of energy

Overview Of Cellular Respiration Cellular respiration is the process that releases energy by breaking down glucose and other molecules in the presence of oxygen. Occurs in the Mitochondria

To release energy from food molecules and make ATP! Why do we need ATP? ATP is the energy molecule needed by our cells Our cells use ATP to make all of the chemical reactions in our body run. Purpose of cellular respiration?

Summary equation for Respiration

Anaerobic respiration Not enough oxygen for aerobic respiration Fermentation-releases energy from food molecules by producing ATP in the absence of oxygen. (Anaerobic = no oxygen) Two types: alcoholic fermentation, lactic acid fermentation

Lactic acid vs alcoholic No oxygen Occurs in muscles Pyruvates  lactate Occurs so muscles can continue making ATP Get lactate build up in muscles Causes soreness No oxygen Pyruvate  carbon dioxide & ethanol Seen in yeast and fungus Used to make beverages, food, makes dough rise

Overall Cellular Respiration breaks down Glucose (C 6 H 12 O 6). It produces H 2 O and CO 2 It produces 36 ATPs!

Comparing Photosynthesis & Cellular Respiration PhotosynthesisCellular Respiration Function Energy captureEnergy Release Location ChloroplastsMitochondria Reactants Carbon dioxide and water Glucose and oxygen Products Glucose and oxygen Carbon dioxide and water