What do polysaccharides, such as cellulose, nucleic acids, such as DNA, and proteins, such as keratin, have in common?

Md Ariful Islam

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There are 4 types of biomolecules: , , , and . They are called as such because they are present in living organisms.

Cellulose, a polysaccharide ( poly meaning many, and saccharide referring to sugar), is classified as a carbohydrate. It is found in the cell wall of plants. Nucleic acids are molecules found in the nucleus and help with genetic material, like what DNA does for us. Keratin is a protein associated with structure, and is found in our hair and nails.

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