State The Role Of Pentose Phosphate Pathway ?

1.	State The Role Of Pentose Phosphate Pathway ?
Answer» In PLANT cells, the major part of glucose is subject to aerobic degradation in the consecutive processes of glycolysis, citric acid cycle and respiratory electron transport chain. In the course of these processes, ATP is SYNTHESIZED by substrate-level phosphorylation and oxidative phosphorylation. The end PRODUCTS are water and carbon dioxide. The pentose pathway is an alternative route for the oxidation of glucose. A number of different names have been assigned to the reaction sequence involved. Since the pathway diverges from glycolysis at the glucose-6-P level, it has been named the hexose monophosphate shunt. Since pentose phosphates play an important role in the cyclic reaction sequence, it is referred to as the pentose phosphate cycle and since phosphogluconate is a key intermediate, the term phosphogluconate pathway is often used. Here glucose is directly oxidized by dehydrogenases (i.e., first TWO reactions of the sequence), it is frequently referred to as the direct oxidation pathway. The term Warburg-Dickens-Horecker pathway is also used after the biochemists who were the principal INVESTIGATORS.

Answer»

In PLANT cells, the major part of glucose is subject to aerobic degradation in the consecutive processes of glycolysis, citric acid cycle and respiratory electron transport chain. In the course of these processes, ATP is SYNTHESIZED by substrate-level phosphorylation and oxidative phosphorylation. The end PRODUCTS are water and carbon dioxide.
The pentose pathway is an alternative route for the oxidation of glucose. A number of different names have been assigned to the reaction sequence involved. Since the pathway diverges from glycolysis at the glucose-6-P level, it has been named the hexose monophosphate shunt.
Since pentose phosphates play an important role in the cyclic reaction sequence, it is referred to as the pentose phosphate cycle and since phosphogluconate is a key intermediate, the term phosphogluconate pathway is often used.
Here glucose is directly oxidized by dehydrogenases (i.e., first TWO reactions of the sequence), it is frequently referred to as the direct oxidation pathway. The term Warburg-Dickens-Horecker pathway is also used after the biochemists who were the principal INVESTIGATORS.

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