Question

In harvesting the chemical energy of the molecules infood:

	a)	all macromolecules must first be converted into theirhydrocarbon chains.
	b)	all macromolecules must first be converted into proteins orfree-form amino acids.
	c)	all macromolecules must first be converted into glucose oranother simple sugar.
	d)	all macromolecules must first be converted intoglucose.
	e)	organisms can utilize sugars, lipids, and proteins.