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.
1. a: a subdivision of a written composition that consists of one or more sentences, deals with one point or gives the words of one speaker, and begins on a new usually indented line b: a short composition or note that is complete in one paragraph.. : a character (as Â¶) used to indicate the beginning of a paragraph and as a reference mark. â parÂ·aÂ·graphÂ·ic \Ëper-É-Ëgra-fik, Ëpa-rÉ-\ adjective. See paragraph defined for English-language learners.