a fatty compound, or lipid, and proteins that transport the building blocks of adenosine triphosphate, or ATP, an energy molecule made by the mitochondria that fuels cell metabolism. "Down the ...

To make an ester, a hydrogen atom must be removed from the hydroxyl group (–OH) of the alcohol. The –OH portion of the acid's carboxyl group must also be removed. The hydrogren atom and the ...

The hydrophilic head is composed of a choline structure (blue ... atoms in one of the hydrocarbon (fatty acid) tails causes a slight kink on this molecule, so it appears bent.