CELL RESPIRATION
ANAEROBIC RESPIRATION FERMENTATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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doesn’t require CO2
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requires CO2
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doesn’t require oxygen
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requires oxygen
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Detailed explanation-1: -Anaerobic respiration is a normal part of cellular respiration. Glycolysis, which is the first step in all types of cellular respiration is anaerobic and does not require oxygen. If oxygen is present, the pathway will continue on to the Krebs cycle and oxidative phosphorylation.
Detailed explanation-2: -Aerotolerant organisms do not require oxygen as they metabolize energy anaerobically. Unlike obligate anaerobes, however, they are not poisoned by oxygen.
Detailed explanation-3: -Without oxygen, organisms can split glucose into just two molecule s of pyruvate. This releases only enough energy to make two ATP molecules. With oxygen, organisms can break down glucose all the way to carbon dioxide. This releases enough energy to produce up to 38 ATP molecules.