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What are biomolecules?

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Quick Answer

Biomolecules are any type of organic molecules, such as macromolecules or DNA, found or produced by living organisms. There are four main categories of biomolecules in living organisms: carbohydrates, lipids, amino acids/proteins and nucleotides

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Full Answer

Each of these biomolecules performs important functions in living organisms. Carbohydrates provide energy and are the building blocks of polymers. Carbohydrates include different sugars, such as monosaccharides, disaccharides and polysaccharides. Monosaccharides are simple sugars, while polysaccharides are formed from large chains of monosaccharides.

Similarly, lipids, which include waxes, steroids and fatty acids, are responsible for regulation of cells in the body by steroid hormones and the storage of energy. Nucleotides are important for the formation of DNA and RNA, which are nucleic acids. Amino acids are necessary for the formation of proteins, such as enzymes collagen and keratin.

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