metabolism

• What is metabolism?


  The sum of all the reactions in a cell or a body.
• What is the energy transferred from respiration used for?

  Building up new molecules using enzymes inside cells.
• Does metabolism include carbohydrate production?

  converting glucose to starch, cellulose and glycogen.
• Does metabolism include lipid production?

  joining 3 fatty acids and 1 glycerol to make a lipid molecule (a fat or an oil).
• Does metabolism include protein production?

  using glucose and nitrate ions to form amino acids, and then joining them to synthesise proteins.
• What else does metabolism include?

  Respiration itself is a metabolic process. Also excess proteins are broken down in the liver to form urea which is excreted.