Cellular Respiration SWBAT define cellular respiration; differentiate between aerobic and anaerobic cellular respiration; name the reactants and products of each type of respiration; list several examples of anaerobic cellular respiration

Cellular Respiration Cellular respiration Cellular respiration –The breakdown of an energy source by a cell to obtain useable energy –Does NOT mean breathing Why does energy need to be released slowly? Why does energy need to be released slowly? –If energy is released to quickly, it becomes destructive. What do enzymes do in the respiration process? What do enzymes do in the respiration process? –Enzymes take the sugar apart, releasing energy

What do you think of when you hear the word aerobic? Which organelle is mostly responsible for breaking down sugar and releasing energy? Which organelle is mostly responsible for breaking down sugar and releasing energy? –The mitochondria are responsible for most of the sugar breakdown What does the cell need for respiration in aerobic respiration? What does the cell need for respiration in aerobic respiration? –Sugar and oxygen What does aerobic respiration produce? What does aerobic respiration produce? –Carbon dioxide, water, and energy Aerobic processes need what? Aerobic processes need what? –Oxygen

What does the prefix an- mean? Anaerobic respiration Anaerobic respiration –Breakdown of sugar for energy without the use of oxygen 2 types of anaerobic respiration: 2 types of anaerobic respiration: –Alcoholic fermentation  Cells produce alcohol and carbon dioxide as they carry on anaerobic respiration –Lactic Acid fermentation  Cells produce lactic acid as they carry on anaerobic respiration

Which type of respiration is the most efficient? Aerobic respiration is more efficient Aerobic respiration is more efficient –Sugar broken down with oxygen produces over fifteen times as much energy as sugar broken down by alcoholic or lactic fermentation.