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An essential clause is improvident to the main point of a sentence, whereas a nonessential clause provides superfluous information. Learn how to spot the different and use proper punctuation with this reading.
As the name suggests, essential amino acids cannot be synthesized by the body and it has to be acquired through food. On the other hand, nonessential amino acids are called so because they can be synthesized by the body. Read on to explore more differences between the two amino acids.
Nutritionally, amino acids are divided into 3 groups—essential, nonessential, and semi-essential. Semi-essential amino acids are synthesized by the body but are designated essential during periods of stress.
Inessential and unessential are also defined as “having no essence” and “void of essence,” respectively, and nonessential also means “being a substance synthesized by the body in sufficient quantity to satisfy dietary needs” (as in nonessential amino acid).
Perhaps the key difference between commas and periods is that a comma never ends a sentence. So how could such an essential fact be termed “nonessential” in a sentence that describes a comma? It’s because we are using grammatical terminology: nonessential refers to sentence structure only.
Whether you’re writing custom web content or a novel, understanding the difference between these essential clauses and nonessential clauses, along with the rules for using each, is crucial.
Determining whether an element in a sentence is essential or nonessential (restrictive or nonrestrictive) and punctuating it correctly are important writing skills to have. I discuss how the meanings of sentences can change, how to use commas correctly, and when to use "that" or "which."
Essential vs Nonessential Clauses. Essential clauses, also known as restrictive clauses, are crucial to the sentence’s core meaning and cannot be omitted without altering the intended message. These clauses provide essential information that identifies or limits the noun they modify.
When the essential element follows the core of the main clause, the conjunction that serves as the link between them. By contrast, a nonessential (or nonrestrictive) word, phrase, or clause is attached to the main clause, trailing a comma and the conjunction which.
Distinguishing between essential and nonessential clauses is crucial to maintaining the intended meaning of a sentence. Part of the difficulty lies with the use of that and which. Modern usage has blurred the distinction between the two.