Difference between glycolysis and pentose phosphate pathway




Difference between glycolysis and pentose phosphate pathway

Characteristics

Glycolysis

Pentose phosphate pathway

Types of pathway  

Major energy yielding pathway for carbohydrate metabolism

 

Biosynthetic pathway to generates precursors for biosynthesis

End product  

Pyruvic acid (aerobic), lactic acid (anaerobic)

Various intermediate precursors
Generation of energy rich molecule  

 

NADH (which enters into Electron transport chain and generates 3 ATP)

 

NADPH (it is a reducing agent in biosynthesis)

 

NADPH

 

absent

 

present

Sugar intermediates generated Triose (glyceraldehyde 3-phosphate, pyruvate) Hexose (glucose, fructose)  

 

Triose (glyceraldehyde 3-phospahte)

Tetrose (erythrose)

Pentose (ribose, xylulose, ribulose)

Hexose (glucose, fructose) and

Heptose (sedoheptulose)

Further metabolism End product of glycolysis enter into TCA cycle  

End product of pentose phosphate pathway enter into glycolysis. So it is a shunt of glycolysis

Difference between glycolysis and pentose phosphate pathway


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