Question

what are the different ways in which glucose is oxidised to provide energy to various organisms

Answer 1

There are two different ways in which glucose is oxidised:
1)aerobic repiration(oxygen)
breaking down of pyruvate using oxygen takes place in mitochondria.This process breaks up the three-carbon pyruvate molecule to give three molecules of carbon dioxide.this process is done in presence of oxygen.
2)anerobic repiration(without oxygen)
the breaking of six carbon molecule, into three-carbon molecule called pyruvate.This process takes place in cytoplasm.Further, the pyruvate may be converted into ethanol and carbon dioxide.this process is done in absence of oxygen.

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Answer 2

1)Glucose is used for providing energy to the body by proces of respiration to humans.It oxides glucose and convert it into ATP(Adrinotriphosphate).
2)Plants make glucose as thier food which we are using.