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Answer 5 out of 6 questions correctly.
What do fish, cheese, eggs, bacon, olive oil, and nuts have in common? They are all sources of
fat.
Fats are part of a diverse group of molecules called lipids.
Lipids also include phospholipids, waxes, and steroids. Lipids are one of the three main types of biological macromolecules, or large carbon-based molecules, found in the foods we eat. The other two are carbohydrates and proteins. 
Lipids perform many different functions. For example, fats store energy for long- term use, while phospholipids are the building blocks of cell membranes. Waxes form protective outer barriers on animals and plants. Steroids function as chemical messengers that regulate processes in the body.
Select the true statements.
Steroids are a type of lipid.
Walnuts, salmon, and butter are dietary sources of lipids.
Lipids are used to build cell membranes.
Lipids are used for quick-acting, short-term energy in cells.
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