What four major classes of organic compounds (polymers) are found in the body?

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Understand that the question asks for the four major classes of organic compounds, also known as macromolecules or polymers, that are essential components of the human body.

Recall that these organic compounds are large molecules made up of smaller subunits called monomers, which join together to form polymers.

Identify the first major class: Carbohydrates, which are composed of sugar monomers and serve as a primary energy source.

Identify the second major class: Lipids, which include fats, oils, and steroids, and are important for energy storage, insulation, and cell membrane structure.

Identify the third and fourth major classes: Proteins, made of amino acid monomers and vital for structure, enzymes, and signaling; and Nucleic Acids, such as DNA and RNA, which store and transmit genetic information.

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Carbohydrates

Carbohydrates are organic compounds made of carbon, hydrogen, and oxygen. They serve as a primary energy source and include sugars and starches. In the body, they exist as simple sugars or complex polymers like glycogen for energy storage.

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04:53

Carbohydrates

Proteins

Proteins are polymers of amino acids linked by peptide bonds. They perform diverse functions such as structural support, enzymes, and signaling. Their structure determines their specific role in bodily processes.

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02:50

Proteins

Lipids

Lipids are hydrophobic organic molecules including fats, oils, and steroids. They store energy, form cell membranes, and act as signaling molecules. Unlike other polymers, they are not formed by repeating monomers.

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