A long chain of three or more amino acids is called a what?
I think the word you are look for is polypeptide.
http://biology.clc.uc.edu/courses/bio104/protein.htm
A long chain of three or more amino acids is called a peptide or a polypeptide. To arrive at this answer, we can break it down step by step:
1. Start by understanding the question: The question asks for the term used to describe a long chain of three or more amino acids.
2. Recall basic knowledge: If you are familiar with biology or biochemistry, you may remember that proteins are formed by joining amino acids together.
3. Identify the key terms: In this case, the key terms are "long chain," "three or more," and "amino acids."
4. Use your knowledge: From your understanding, you should know that peptides and polypeptides are formed by linking amino acids together.
5. Check the options: Given the options "peptide" or "polypeptide," both terms are correct and can be used interchangeably to describe a long chain of three or more amino acids.
Therefore, the answer is a peptide or a polypeptide.