Question

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

Answer 1

The cells in yeasts and other organisms break down the glucose in the absence of oxygen with the process called anaerobic fermentation....
Ethanol+co2+energy are produced as end products

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.

Very less amount of energy is released in both the above cases.