Respiration

• Define cellular respiration 


  An exothermic reaction

  Which transfers energy from glucose (by breaking apart glucose molecules)

  And is constantly occurring in living cells
• Define metabolism


  All the chemical processes that occur within a living organism in order to maintain life
• What is the equation for aerobic respiration 


  Glucose+oxygen -> carbon dioxide+ water
• Where does aerobic respiration happen


  In the mitochondriaIn the mitochondria
• What is the equation for anaerobic respiration in animals


  Glucose -> lactic acidGlucose -> lactic acid
• What is the equation for anaerobic respiration in yeast


  Glucose -> ethanol+ carbon dioxide
• What are the negatives of anaerobic respiration 


  Incomplete breakdown of glucose

  • inefficient as not all the energy is unlocked
  • no oxygen to oxidise lactic acid build up must be removed
• What is energy used for


  Build larger molecules from smaller ones

  • Amino acids into protein
• What is energy used for


  Build larger molecules from smaller onesBuild larger molecules from smaller ones (amino acids into protein)

  Muscular contraction

  To maintain body temperature
• What can we use fermentation for

  of yeast, in bread where the CO2 makes the bread light

  Ethanol is used to make beer and wine