The complete reaction of glucose (1 molecule) breakdown by aerobic respiration o

Question

The complete reaction of glucose (1 molecule) breakdown by aerobic respiration of mammalian cells is written below: C_6 H_12 O6 (glucose) + 6O_2 + 6H_2 O 6CO_2 + 12H_2O Define the oxidation state of carbon atom and oxygen atom in the reaction. How many high energy electrons will be taken away from 1 molecule of glucose when it is completely broken down to carbon dioxide? How many electrons does each oxygen atom accept when it is reduced? (Reactions are not balanced) C_6 H_12 O_6 (glucose) rightarrow 6CO_2 Oxidation state of: C rightarrow C How many electrons? 6O_2 rightarrow 12H_2 O Oxidation state of: O rightarrow O How many electrons?

Explanation / Answer

The oxidation state of an atom is defined as the loss of electrons to reduce another atom.

Here, the oxidation state of C- atom in one a molecule of glucose is 0 and the C-atom in CO2 is +4 x 6 = 24.

Also, oxidation state of O in O2 is +2 x 6 = +12 and O in 12H2O is +2 x 12 = 24.

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