The document compares the EMP, ED, and HMP metabolic pathways, detailing substrate usage and end products like pyruvate and lactate. It highlights differences in ATP generation and oxidative versus non-oxidative phases across these pathways, as well as their occurrence in various organisms and tissues. Additionally, it notes the anaerobic breakdown of sugars and the specialization of certain bacteria in utilizing these pathways.

1. ComparisonbetweenEMP,ED&HMPpathway:
EMPpathway EDpathway HMPpathway
Substrate Glucose Glucose,gluconate Glucose-6-phosphate
Intermediate 3C,6Csugars 6Csugars 3C,4C,5C,6Csugars
Endproduct Pyruvateorlactate PyruvateorPGAL Fructose-6-phosphate&
PGAL
Pathwaydivision Preparatoryphase&Pay-
offphase
--- Oxidativeirreversible
phase&Non-oxidative
reversiblephase
ATPgenerates 2ATP/glucosemolecule 1ATP/glucosemolecule 0
Reducingpower
generates
--- --- NADPH+H
+
Followedby Universalpathway
followedbyplants,
animals&microbes.
Specializedpathway
followedbycertain
bacterialike
Pseudomonas,
Xanthomonas&
Azotobacter.
Followedinadipose
tissue,adrenalcortex,
mammaryglands.
Mode Anaerobicbreakdownof
sugars.
Oxidativebreakdownof
sugars&sugarnacids.