Just as glucose is the basic building block for carbohydrates, amino acids are the basic building blocks of protein. Amino acids contribute to the development of protein within the body and are vital in assisting in wound repair and encouraging healthy tissue in muscles, bones, skin and hair. There are 22 amino acids with 9 being essential.
The answer to this question would be: <span>B. Receptor site
The receptor site of a neurotransmitter often only receives a specific kind of transmitter. That was because the receptor has a unique 3D structure, so different transmitter wouldn't fit into the receptor. That was similar to lock and key principles.</span>
The answer is b: have to be voted on by l regestered voters