are lipids a type of fat
Fats, like other lipids, are generally hydrophobic, and are soluble in organic solvents and insoluble in water. Fat is an important foodstuff for many forms of life, and fats serve both structural and metabolic functions. They are a necessary part of the diet of most heterotrophs (including humans).
Oil is a type of lipid known as a triglyceride. Solid triglycerides are called fats and liquid triglycerides are called oils. Credit: Thomas Vogel/E+/Getty Images.