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Energy Metabolism: Respiration (Anaerobic Respiration # (Fermentation…
Energy Metabolism: Respiration
Respiration
#
Breaks down complex carbon compounds into simpler molecules while making ATP
Catabolic
#
Anaerobic Respiration
#
Without Oxygen
Obligate Anaerobe: Organisms killed by oxygen
Bacteria
Fermentation
Alcoholic beverages
Produces ethanol (dangerous)
Allows some organisms to survive in certain environments
Rice plants
When crop is flooded rice seeds carry out anaerobic processes that allows seeds to grow
Less efficient producing only 2 ATP
Aerobic Respiration
With oxygen
Glycolysis
Occurs in cytosol and plastids
Produces ATP and NADPH
Citric Acid Cycle
Obligate Aerobes: Organisms that require oxygen
Example
Plants
Animals
Factors that influence rate of respiration
Temperature
Temp between 5-25 degree Celsius results in increase in rate of respiration
Below 5 Celsius, rate of respiration decreases
Lack of oxygen
Anaerobic respiration not good for root growth
Internal regulation
Cells with an active metabolism have a high level of aerobic respiration
Citric Acid Cycle
Respiration rates are low due to the decrease in temp
Respiration is directly affected by temperature
Plants also partake in anaerobic respiration when enough oxygen is not available
Fermentation is a catabolic reaction
