What are the four categories of biochemical molecules of the human body?
1 Answer
The four categories of biochemical molecules in the human body are carbohydrates, lipids, proteins, and nucleic acids.
CARBOHYDRATES
Carbohydrates are organic compounds made of C, H, and O atoms. They consist of monosaccharides (single sugars) linked together. Examples are starch, glycogen, and cellulose.
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LIPIDS
Lipids are nonpolar molecules that are not soluble in water. Examples are cholesterol, triglycerides, and phospholipids.
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PROTEINS
Proteins are chains of amino acids. The most abundant protein in the blood is albumin, which is also the chief protein of egg whites.
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NUCLEIC ACIDS
Nucleic acids are long chains of smaller molecules called nucleotides. Examples are RNA and DNA.
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