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.
Paragraphs, whether denoted by a new line and an indentation or a line break, provide a structure for your writing. The end of a paragraph represents a significant pause in the flow of the writing. This pause is a signpost to the reader, indicating that the writing is about to move on to a different stage. Each paragraph should deal with one idea or aspect of an idea, and it should be clear to the reader what this main idea is.