hehehe...I just got a question from a friend of mine..so I decided to post it..
well..to answer this problem..
1st, change the glycerol into pyruvate..in both of the ways..
1st way:
is by Glucose-alanine cycle
(...read your text book...)
Pyruvic acid + Glutamic acid <---------------> Alanine + alpha-Ketoglutarate
PLP
2nd way:
(...refer serine metabolism...)
3-phosphoglyceric acid-------------->Serine---------->Pyruvate------(seperti di atas)---->Alanine
ok..I think that's 2 ways of converting glycerol to alanine..if you have more method to add..feel free to share :)