Question

Where are anabolic precursors drawn off of the EMP pathway and what are their fates?

Answer 1

EMP pathway is amphibolic i.e. both catabolic and anabolic processes are occurring together. Anabolic precursors are those intermediate compounds from where other molecules are synthesized by using the energy. In EMP pathway, three compounds are anabolic precursors. These are:

I) Dihydroxyacetonephosphate (DHAP)

ii) Glyceraldehyde 3-phosphate

iii) Pyruvate

The fate of DHAP is to synthesize lipids . DHAP is precursor to 2-oxopropanal.

Glyceraldehyde-3-phosphate lead to the formation of vitamin B_{​​​​​​6.}

Pyruvate is the biosynthetic precursor of certain amino acids like alanine.