Zusammenfassung der Ressource
12. Respiration
- 12.1 Respiration
- state the uses of energy in
the human body
Anmerkungen:
- muscle contraction
protein synthesis
cell division
active transport
growth
the passage of nerve impulses
and the maintenance of a constant body temperature
(MRS GREN)
- state that respiration
involves the action of
enzymes in cells
- 12.2 Aerobic respiration
- define aerobic respiration
Anmerkungen:
- The chemical reactions in cells that use oxygen to break down nutrient molecules to release energy
- state the equation for aerobic respiration
Anmerkungen:
- glucose + oxygen --> carbon dioxide + water
the balanced chemical equation as C6H12O6 + 6O2 --> 6CO2 + 6H2O
(some of these numbers should be subscript!!)
- investigate the effect of temperature
Anmerkungen:
- on the rate of respiration of germinating seeds
- investigate the uptake of oxygen by
respiring organisms
Anmerkungen:
- such as arthropods and germinating seeds
- 12.3 Anaerobic respiration
- define anaerobic respiration
Anmerkungen:
- as the chemical reactions in cells that break down nutrient molecules to release energy without using oxygen
- state the equations for anaerobic respiration
- in muscles during vigorous exercise
Anmerkungen:
- word equation:
glucose --> lactic acid
- in the microorganism yeast
Anmerkungen:
- word equation:
glucose --> alcohol + carbon dioxide
balanced chemical equation:
C6H12O6 --> 2C2H5OH + 2CO2
(some of these numbers should be subscript)
- state that anaerobic respiration releases much less energy
Anmerkungen:
- per glucose molecule than aerobic respiration
- state that lactic acid builds up
Anmerkungen:
- in muscles and blood during vigorous exercise causing an oxygen debt
- outline how the oxygen debt is removed during recovery
Anmerkungen:
- 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