difference between respiration in the presence and absence of oxygen
Answers
Explanation:
Respiration in the presence of oxygen is known as aerobic respiration.
Eg.-Human beings breath via lungs and it is aerobic respiration.
Whereas when respiration takes place without or in the absence of oxygen then it is called anaerobic respiration.
Sometimes due to insufficient supply of oxygen there also takes partial aerobic respiration.Eg in our muscle cells.
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Eg.In yeast cells anaerobic respiration takes place.
Key Differences Between the Aerobic Respiration and Anaerobic Respiration
Following are the substantial differences between both kind of respiration:
The breakdown of glucose in the presence of oxygen to produce more amount of energy is called as aerobic respiration; Whereas the
breakdown of glucose in the absence of oxygen to produce energy is called as anaerobic respiration.
Chemical Equation of aerobic respiration is Glucose + Oxygen gives Carbon dioxide +water + energy whereas the equation of anaerobic respiration is Glucose gives Lactic acid + energy
Aerobic respiration occurs in the cytoplasm to mitochondria, while anaerobic respiration occurs in the cytoplasm only.
The high amount of energy is produced and 38 ATP released at a time in aerobic respiration; Less amount of energy is produced and 2 ATP are released at a time in anaerobic respiration.
Final product in aerobic respiration are carbon dioxide and water, whereas Lactic acid (animal cells), carbon dioxide
and ethanol (plant cell) is the final product in anaerobic respiration.
Aerobic respiration requires oxygen and glucose to produce energy whereas in anaerobic respiration does not require oxygen but uses
glucose to produce energy.
The stages involved in aerobic respiration are –
1. Glycolysis – also called Embden-Meyerhof-Parnas(EMP) pathway; 2.The respiratory chain (electron transport and oxidative phosphorylation);
3. The tricarboxylic acid cycle (TCA), also known as citric acid cycle or Krebs cycle whereas the anaerobic respiration involves the two stages only which is
1. Glycolysis and
2.Fermentation
Aerobic respiration shows complete process of combustion, while it is incomplete in the anaerobic respiration.
Aerobic respiration is a long process for the production of energy whereas anaerobic respiration is a fast process in comparatively.
Examples of aerobic respiration occurs in many plants and animals (eukaryotes) whereas anaerobic respiration occurs in human muscle
cells (eukaryotes), bacteria, yeast (prokaryotes), etc.