Recent research ventures embarked on striking links between entrepreneurship and piracy. In this context, the claim is made for a nonmoral approach to piracy as a source of inspiration for entrepreneurship education as well as for research in entrepreneurship and business model generation.ntrepreneur (/ËÉntrÉprÉËnÉr/), is a loanword from French. First used in 1723, today the term entrepreneur implies qualities of leadership, initiative and innovation in new venture design.
The primary structure of proteins Now there's a problem! The term primary structure is used in two different ways. At its simplest, the term is used to describe the order of the amino acids joined together to make the protein. In other words, if you replaced the R groups in the last diagram by real groups you would have the primary structure of a particular protein.
The order of the amino acids is different in each protein, and this order confers on the protein its unique properties. If you wanted to make a protein that was 100 amino acids long (this, by the way, is quite small for a protein), the number of different ways you could arrange 20 amino acids to make a protein of this length would be 20 to the 100th power, which is a staggering number. For longer proteins, the number of possibilities is correspondingly greater. This allows cells to make a huge variety of proteins, each of which has distinctive properties. The amino acids are joined to each other by peptide bonds, and the chain of amino acids so formed is called a polypeptide. Proteins in cells don't exist as long, straight chains of amino acids. These chains are folded on themselves to make three-dimensional structures.