Here's why:
* Nucleic Acids: These are primarily responsible for storing and transmitting genetic information. DNA (deoxyribonucleic acid) carries the genetic blueprint, while RNA (ribonucleic acid) helps translate that blueprint into proteins.
* Structural Materials: The major structural materials of the body are:
* Proteins: These are the workhorses of the body. They form muscles, tendons, ligaments, skin, hair, and provide structure to cells.
* Carbohydrates: These provide energy and also contribute to structure. For example, cellulose in plants provides rigidity.
* Lipids: These form cell membranes and provide insulation and energy storage.
While nucleic acids play a vital role in life, they are not the building blocks of the body's structure.
