Phenylalanine, tyrosine, tryptophan. Aliphatic amino acids: These are ones which have aliphatic groups like -CH2- in between carboxylic and amine moiety. They are the ones excluding aromatic amino acids from the above list of both essential and non-essential ones.
What is a paragraph? A paragraph is a collection of related sentences dealing with a single topic. Learning to write good paragraphs will help you as a writer stay on track during your drafting and revision stages. Good paragraphing also greatly assists your readers in following a piece of writing.
A paragraph (from the Ancient Greek ÏÎ±ÏÎ¬Î³ÏÎ±ÏÎ¿Ï paragraphos, to write beside or written beside) is a self-contained unit of a discourse in writing dealing with a particular point or idea. A paragraph consists of one or more sentences.