aerobic respiration & ATP

• what does respiration do?

  respiration releases the chemical energy stored in glucose through a series of enzyme controlled reactions
• what are the uses of ATP?

  1 - muscle cell contraction

  2 - cell division

  3 - protein synthesis

  4 - transmission nerve impulses
• where does aerobic respiration start?

  in the cytoplasm
• why does aerobic respiration occur?

  because oxygen is present
• stage one of aerobic respiration

  Glucose is broken down to TWO MOLECULES of pyruvate in the cytoplasm & Oxygen is not required.
• stage 2 of aerobic respiration

  each pyruvate is broken down to carbon dioxide and water releasing ENOUGH ENERGY to produce a LARGE NUMBER OF ATP. If oxygen is present AEROBIC RESPIRATION takes place in the MITOCHONDRIA. Then carbon dioxide + water is produced.