4.4 Overview of Cellular Respiration KEY CONCEPT Cellular respiration converts organic molecules like carbohydrates into ATP using oxygen.

4.4 Overview of Cellular Respiration Cellular respiration makes ATP by breaking down sugars. Cellular respiration is aerobic--requires oxygen. Aerobic stages take place in mitochondria. mitochondrion animal cell

4.4 Overview of Cellular Respiration Glycolysis must take place first. –anaerobic process (does not require oxygen) –takes place in cytoplasm –splits glucose into two three-carbon molecules –produces two ATP molecules

4.4 Overview of Cellular Respiration What does a cell get from Cellular Respiration? From Glycolysis (no Oxygen) - 2 ATP’s This is anaerobic!! From the Kreb’s Cycle (Oxygen) ATP’s This is aerobic!! *CELLULAR RESPIRATION– 38 ATP’s TOTAL Aerobic Respiration is a better deal as you will see in a few minutes.

4.4 Overview of Cellular Respiration The equation for the overall process is: C 6 H 12 O 6 + 6O 2  6CO 2 + 6H 2 O

4.4 Overview of Cellular Respiration Did the formula for cellular respiration remind you of anything?

4.4 Overview of Cellular Respiration The equation for the cellular respiration is: C 6 H 12 O 6 + 6O 2  6CO 2 + 6H 2 O The equation for photosynthesis is: 6CO 2 + 6H 2 O  C 6 H 12 O 6 + 6O 2 The reactants in photosynthesis are the same as the products of cellular respiration.