Chemical Energy of Macromolecules

[rosegarden]

Hey guys,
I'm having trouble figuring out which of the following molecules have more chemical energy per gram: cellulose, glucose, starch, canola oil, or glycogen

I think the canola oil probably has the most energy because it's a highly reduced fatty acid. I don't know which one of glucose, starch, or glycogen will come next as all 3 of them are carbs. Cellulose will probably have the least chemical energy since it is just used for structure.

[JackBean]

you mean by digestion?

[rosegarden]

Well I don't really mean nutritionally, just how much chemical energy is stored in there. I think the order of macromolecules from most chemical energy to least is:
canola oil > glycogen > starch > cellulose > glucose

but I just don't know if cellulose would have higher chem energy than glycogen due to the H bonding between cellulose strands...

[JackBean]

if it's in its native state, then it should be like oil > cellulose > starch > glycogen > Glc
The reason, why I gave cellulose first (or just second after the oil) is, that it is well packed, so I would assume, it doesn't contain that much water as the other sugars do, because they are highly hydrated.