12. Respiration

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Syllabus (extended) 2021
Brigitte Bunge
Mind Map by Brigitte Bunge, updated more than 1 year ago
Brigitte Bunge
Created by Brigitte Bunge over 1 year ago
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12. Respiration
  1. 12.1 Respiration
    1. state the uses of energy in the human body

      Annotations:

      • muscle contraction protein synthesis cell division active transport growth the passage of nerve impulses and the maintenance of a constant body temperature (MRS GREN)
      1. state that respiration involves the action of enzymes in cells
      2. 12.2 Aerobic respiration
        1. define aerobic respiration

          Annotations:

          • The chemical reactions in cells that use oxygen to break down nutrient molecules to release energy
          1. state the equation for aerobic respiration

            Annotations:

            • glucose + oxygen --> carbon dioxide + water the balanced chemical equation as C6H12O6 + 6O2 --> 6CO2 + 6H2O (some of these numbers should be subscript!!) 
            1. investigate the effect of temperature

              Annotations:

              • on the rate of respiration of germinating seeds
              1. investigate the uptake of oxygen by respiring organisms

                Annotations:

                • such as arthropods and germinating seeds
              2. 12.3 Anaerobic respiration
                1. define anaerobic respiration

                  Annotations:

                  • as the chemical reactions in cells that break down nutrient molecules to release energy without using oxygen
                  1. state the equations for anaerobic respiration
                    1. in muscles during vigorous exercise

                      Annotations:

                      • word equation: glucose --> lactic acid
                      1. in the microorganism yeast

                        Annotations:

                        • word equation: glucose --> alcohol + carbon dioxide balanced chemical equation:  C6H12O6 --> 2C2H5OH + 2CO2 (some of these numbers should be subscript)
                      2. state that anaerobic respiration releases much less energy

                        Annotations:

                        • per glucose molecule than aerobic respiration
                        1. state that lactic acid builds up

                          Annotations:

                          • in muscles and blood during vigorous exercise causing an oxygen debt
                          1. outline how the oxygen debt is removed during recovery

                            Annotations:

                            • limited to: - aerobic respiration of lactic acid in the liver - continuation, after exercise, of fast heart rate to transport lactic acid in blood from muscles to the liver - continuation, after exercise, of deeper breathing supplying oxygen for aerobic respiration of lactic acid
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