Answer
Lots of fat, protein, and cholesterol provides the developing chick with lots of energy (fats), lipid subunits (fats) and amino acids (proteins) to build membranes and proteins in the cells of the chick, and the cholesterol helps to build signal molecules as well as to regulate membrane fluidity.
Work Step by Step
Review the chapter and see what each of these molecules do in cells, and then imagine also what each could do for the chick as a source of subunits for the same class of macromolecules.
