Question

Explain in terms of cellular requirements why the Pentose Phosphate Pathway would be used instead of glycolysis.

Answer 1

in glycolysis pathway, the glucose molecule is coveted into the 2 molecules of pyruvate and the pyruvate will be used for th production of energy through TCA cycle. it have only one function to produce ATP, and also produced NADH2 and FADH2.

Energy requirement is on important requirement for the survival but other requirement are also important like production of DNA and RNA. for the formation of DNA and RNA ribose sugar is required. the ribose sugar is synthesized using glucose-6-phosphate  through Pentose phosphate pathway. and it also produce NADH2 that is used in various process as p[roton donor.

hence it is one of the most important pathway because without this pathway the next generation and the expression of gene is not possible, if ribose is lacking.