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Investigating respiration. Objectives Recall how temperature affects the rate of enzyme controlled reactions. Analyse results from an investigation Explain how a manometer works. Factors that affect respiration.

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investigating respiration
Investigating respiration

Objectives

  • Recall how temperature affects the rate of enzyme controlled reactions.
  • Analyse results from an investigation
  • Explain how a manometer works
factors that affect respiration
Factors that affect respiration

Come up with a list of factors that could affect the rate of respiration. For each one try to give an explanation.

  • Availability of substrate.
    • Glucose
    • Oxygen
    • NAD
    • ATP (from glycolysis)
    • FAD

2. Temperature-Respiration is enzyme controlled.

3. pH-Respiration is enzyme controlled.

4. Enzyme inhibitors.

5. Problems with mitochondria.

manometer
Manometer

-Used to measure the rate of respiration.

-Measures the volume of oxygen used up by displacing a liquid.

Volume of oxygen can then be calculated by using the diameter of the capillary tube.

-Soda lime is used to absorb carbon dioxide produced. This ensures that the liquid will only move due to the depletion of oxygen.