sentence: Fats are made from lipid molecules.
sentences_before: A 'lipid' is a type of molecule useful in biology. It is also oily or waxy.
sentences_after: Sources of lipid can be found in algae, seeds, meat, cheese, butter and fish. Lipids are long chains of carbon and hydrogen molecules. Lipids are classified as simple and complex. Examples of complex molecules could be steroids or phospholipids.
concept_name: fat
headings: Lipid
categories: Biochemistry