Question

1. What role does glucose oxidation play in the metabolism of an organism?

2. Pyruvate is referred to as the hub (central point) of glucose oxidation. Explain why.

3. Compare the efficiency of aerobic respiration and fermentation.

Answer 1

1.glucose oxidation provides the amount of energy that organisms need to survive .This is half part of metabolism called anabolism

2.the citric acid cycle is central metabolic hub of the cell .It is the gateway to the aerobic metabolism any molecule that can be transformed into acetyl group or dicarboxylic acid .The cycle is also an important source of precursors not for the storage forms of fuels but also for the building blocks of many other molecules such as aminoacids,nucleotide bases, chloresterol and porphyrin

3.aerobic respiration produces 34-36ATP,depend on efficiency .Fermentation does'nt produce any new ATP.However glycolysis which processds aerobic respiration and fermentation ,produces of net gain of 2ATP