Essay Example on Unlike some people may think respiration is not Breathing

Anaerobic respiration does not need oxygen so only happens in animal if there is not a big enough supply of oxygen for example if the animal is running for a long period of time so when an animal respires anaerobically the lactic acid builds up in the muscles and can get painful as lactic acid is a poison The building up of lactic acid in muscles is also known as muscle fatigue meaning your muscles get tired and do not contract properly When exercise has been completed the blood will take away the lactic acid for more detail look at the paragraph entitled Exercise and Respiration In plants and yeast this process if different ethanol and carbon dioxide are produced from the incomplete breakdown of glucose glucose ethanol carbon dioxide In yeast anaerobic respiration has a special name fermentation and can be used to produce bread and alcoholic drinks by using the ethanol Comparing Aerobic Respiration and Anaerobic Respiration Although aerobic respiration and anaerobic respiration are both types of respiration and both release energy there are many difference between aerobic and anaerobic respiration Aerobic respiration needs oxygen and is the complete breakdown of glucose whereas anaerobic respiration does not need oxygen and is the incomplete breakdown of glucose Also aerobic respiration always has end products of carbon dioxide and water whereas anaerobic respiration has two different possible end products depending on the organism the product if animals respire anaerobically is lactic acid however the end products if plants or yeast respire anaerobically are ethanol and carbon dioxide 

The term metabolic rate refers how fast chemical reactions occur in our body Many factors can affect metabolic rate including age gender the ratio of muscles to fat in the body the amount of exercise a person does and factors inherited from family members When we exercise our metabolic rate increases and will stay high for a while after the exercise has ceased Metabolism is the name given to all chemical reactions that happen in your body These reactions are controlled by enzymes and many need energy to be transferred so they can occur The energy that is transferred by respiration is used to make a number of new molecules including changing glucose to starch to make glycogen or cellulose using a molecule of glycerol and three molecules of fatty acid to make lipid molecules making amino acids from glucose and nitrate ions and breaking down unneeded proteins into urea for excretion