How many different AMINO ACIDS are there that all living organisms use?Group of answer choices1220344664

Final Answer

There are 20 different amino acids that all living organisms commonly use to build proteins. These amino acids are the fundamental building blocks of proteins and participate in various biological processes.

Among the 20 amino acids, there are 9 essential amino acids that must be obtained through diet, as the human body cannot synthesize them. The remaining amino acids can be synthesized by the body. The sequence and specific combination of these amino acids determine the structure and function of proteins, which play crucial roles in virtually all cellular processes, including metabolism, immune response, and cell signaling.

In summary, given the common answer choices provided (12, 20, 34, 46, 64), the correct choice is 20, as it accurately reflects the number of amino acids utilized across all forms of life.