Question

nonpolar
consists mostly of carbon and hydrogen
hydrophobic
main structural component of the cell membrane
includes waxes and steroids
more energy per gram than any other biomolecule
the macromolecule being described is a:
lipid
protein
nucleic acid
carbohydrate

Explanation:

Lipids are non - polar molecules (consist mostly of carbon and hydrogen, hydrophobic). They are the main structural component of the cell membrane (phospholipids form the bilayer). Lipids also include waxes and steroids. Additionally, lipids provide more energy per gram than any other biomolecule (about 9 calories per gram compared to 4 calories per gram for carbohydrates and proteins).

Answer:

lipid