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 basic paragraph structure usually consists of five sentences: the topic sentence, three supporting sentences, and a concluding sentence. But the secrets to paragraph writing lay in four essential elements, which when used correctly, can make a okay paragraph into a great paragraph. Element #1: Unity. Unity in a paragraph begins with the topic sentence. Every paragraph has one single, controlling idea that is expressed in its topic sentence, which is typically the first sentence of the paragraph.