The building blocks of proteins are known as amino acids. These acids are not only the building blocks of proteins--they are also important in many other chemical and biological processes.
Many kinds of prokaryotes and eukaryotes contain a structure outside the cell membrane called the cell wall. With only a few exceptions, all prokaryotes have thick, rigid cell walls that give them their shape. Among the eukaryotes, some protists, and all fungi and plants, have cell walls.
Answer:
Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorous, Sulfur (mnemonic for the six most abundant elements in the human body)
Explanation:
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