The molecule that is the primary source of energy in all cells is ATP, which is definitely not a macromolecule. Other primary sources of energy include other sugars, proteins, and fats. Hope this answers the question. Have a nice day.
Jugular vein, cephalic vein, and the saphenous vein.
Diffusion things go from high to low concentration so if there's more sugar inside the potato water will go in because there's less water inside than outside.
