Biology 1

Mr. Detering's web site

Cellular Respiration

Energy and ATP

Glycolysis

Cellular Respiration

     Cellular respiration - an introduction
                                - The process by which food molecules are broken down to release energy for work
                                 - Cellular respiration appears to be the reverse of photosynthesis!
                                 - Energy from glucose released, consumes food / glucose (heterotrophs), consusmes O₂ & gives off CO

                  Cellular Respiration:       C₆H₁₂O₆   +  O₂   →   CO₂   +  H₂O  +  energy

                  Two types of cellular respiration - aerobic and anaerobic

                  Both types of cellular respiration (aerobic & anaerobic) begin with glycolysis

     Photosynthesis - Stores energy from sun in glucose, produces food / glucose (autotrophs), consumes CO₂ & gives off O₂

Photosynthesis              CO₂  +  H₂O  +  energy   →   C₆H₁₂O₆  +  O₂

Aerobic respiration - Krebs cycle and the electron transport chain

Aerobic respiration - summary

Exercises
          WS - Photosynthesis and energy basics
          WS - Photosynthesis reactions

          WS - Glycolysis & aerobic respiration - 1
          WS - Cellular respiration - 2
          WS - Electron transport chain
          WS - Comparing photosynthesis and cellular respiration

Anaerobic respiration

Exercise:    WS - Anaerobic respiration