Respiration

• What type of reaction is respiration?

  Exothermic reaction
• What is the primary purpose of respiration?

  To transfer energy needed for various processes
• What are the three processes that require energy from respiration?

  1. Movement
  2. Keeping warm in mammals
  3. Respiration
• What type of respiration occurs in the presence of oxygen?

  Aerobic respiration
• Where does aerobic respiration take place in the cell?

  In the mitochondria
• What is the chemical equation for aerobic respiration?

  Glucose + Oxygen → Carbon Dioxide + Water
• Write the chemical formula for glucose and the products of aerobic respiration.

  C₆H₁₂O₆ + O₂ → CO₂ + H₂O
• What is the role of respiration in chemical reactions within the body?

  To carry out chemical reactions to build up larger molecules
• What is anaerobic respiration?

  Respiration that occurs in the absence of oxygen
• How does anaerobic respiration differ from aerobic respiration in terms of energy transfer?

  Less energy is transferred as oxidation of glucose is incomplete
• What is produced in muscles during anaerobic respiration?

  Glucose is converted to lactic acid
• What is the equation for anaerobic respiration in yeast?

  Glucose → carbon dioxide + ethanol
• What is the term for anaerobic respiration in yeast?

  Fermentation
• Why is anaerobic respiration in yeast economically important?

  It is used to manufacture alcoholic beverages and bread
• What are the key products of anaerobic respiration in plants and yeast?

  • In muscles: Glucose → Lactic acid
  • In yeast: Glucose → Carbon dioxide + Ethanol