Question

Explain 3 pathways of break down of glucose?

Answer 1

The first step is The breakdown of a 6 carbon molecule into a 3 carbon molecule of pyruvate=> the aerobic oxidation of pyruvate occurs in mitochondria.=> The 3 carbon pyruvate molecule give rise to carbon dioxide and water.

Answer 2

First pathway
In which O2 is present
Pyruvate is 3 carbon molecule which broke down in presence of O2 in mitrochondria and forms CO2 +H2o + 38 ATp

Second pathway
In which lack of O2 present
Pruvate brokers into Lactic acid + CO2

Third pathway
In which O2 is not present
Pruvate brokes into CO2 , ethanol 2 ATP