but anjali mam in ncert it is given that glycolysis occurs in anaerobic organisms

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Glycolysis occurs in both aerobic and anaerobic (Eg: Some prokaryotes—bacteria and archaea) organism.

If glucose is broken down in absence of oxygen, it is known as anaerobic glycolysis. Anaerobic glycolysis is also referred as lactic acid formation, as it involves the formation of by-products such as lactic acid in animals, unlike aerobic glycolysis yields carbon dioxide and water as by-products. 

In humans, both aerobic and anaerobic glycolysis can take place. Anaerobic glycolysis occurs in cytosol, whereas aerobic glycolysis occurs in mitochondria.

Anaerobic organism which uses glycolysis: Clostridium etc.

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please any one sir/mam
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