Question

Describe various paths of glucose breat down in organism.

Answer 1

there are only 2 path in which glucose can break down in body.
1) It can break down by oxygen in mitrocondria to give out 38 ATP.
2) It can break down in the absence of oxygen in cytoplasm to give out 2ATP . when your body need more energy to work .

Answer 2

first step is the break down of glucose, a six carbon molecule, into a three-carbon molecule called pyruvate. This process takes place in cytoplasm. Further, the pyruvate maybe converted into ethanol and carbon dioxide.  This process takes place in yeast during fermentation. Since this process takes place in the absence of air(oxygen), it is called anaerobic respiration. Break-down of pyruvate using oxygen takes place in the mitochondria. This process breaks up the tree carbon molecule pyruvate molecule to give three molecules of carbon dioxide. The other product is water. Since this process takes place in the presence of air,  it is called aerobic respiration. The release of energy in this aerobic process is a lot greater than in the aerobic process. Sometimes, when there is a lack of oxygen I. Our muscle cells, another pathway for the break-down  of pyruvate is taken. Here the pyruvate is converted into lactic acid which is also a three -carbon molecule. This build up of lactic acid in our muscles during sudden activity causes cramps.