The 1665â66 epidemic was on a far smaller scale than the earlier Black Death pandemic; it was remembered afterwards as the great plague mainly because it was the last widespread outbreak of bubonic plague in England during the 400-year timespan of the Second Pandemic.
Proteins can also be very important in communication in the body â insulin, for example, is a protein. In fact, if you take away the water, 75% of our bodies are protein. All of these proteins require the right amino acids found in our bodies and our diets to be made. Can't make amino acids.
What Is an Essential Amino Acid? An essential amino acid may also be called an indispensable amino acid. This is an amino acid that the body cannot synthesize on its own, so it must be obtained from the diet. Because each has its own physiology, the list of essential amino acids is different for humans than it is for other organisms.