Question

In the human body, cellular respiration breaks down sugar molecules after they enter the cell. what results from this process?

Answer 1

Hello,

The cellular respiration breaks down the sugar molecules or the carbohydrates after they enter the cell.

The sugar or the carbohydrates undergoes a process known as glycolsis. This takes place in cytoplasm only.
In this process the 6 carbon molecule sugar is converted into pyruvate that is a 3 carbon molecule sugar.

After this there are two ways of further processing.
1)presence of oxygen

The pyruvate is sent to Mitochondria where complete oxidation of pyruvate takes place.
After this energy, water and carbondioxide are produced.
This process forms 32ATP (energy currency of the cell)

2)absence of oxygen

Sometimes muscles don't get enough oxygen to generate energy.so ,
Muscles start respiring anaerobically.
This results on formation of energy and lactic acid in the cell.
This process takes place in the cytoplasm only.
There are production of only 2ATP(energy currency of the cell)

Hope this will be helping you ✌️