Question

Explain the ways in which glucose is broken down in absence of oxygen.

Answer 1

in cytoplasm glucose breakdowns into pyruvate and in the absence of oxygen(in yeast) it forms ethanol+co2+energy

Answer 2

There are two ways of anaerobic breakdown of glucose. First step is breakdown of glucose molecule into pyruvate which takes place in cytoplasm.

The anaerobic breakdown in bacteria is called fermentation. During fermentation pyruvate is broken down to ethyl alcohol and carbon dioxide.

When there is lack of oxygen in our muscle cells pyruvate is broken down to lactic acid.