- published: 16 Jan 2014
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Ribonucleic acid /raɪbɵ.njuːˌkleɪ.ɨk ˈæsɪd/, or RNA, is part of a group of molecules known as the nucleic acids, which are one of the four major macromolecules (along with lipids, carbohydrates and proteins) essential for all known forms of life. Like DNA, RNA is made up of a long chain of components called nucleotides. Each nucleotide consists of a nucleobase, a ribose sugar, and a phosphate group. The sequence of nucleotides allows RNA to encode genetic information. All cellular organisms use messenger RNA (mRNA) to carry the genetic information that directs the synthesis of proteins. In addition, many viruses use RNA instead of DNA as their genetic material.
Some RNA molecules play an active role in cells by catalyzing biological reactions, controlling gene expression, or sensing and communicating responses to cellular signals. One of these active processes is protein synthesis, a universal function whereby mRNA molecules direct the assembly of proteins on ribosomes. This process uses transfer RNA (tRNA) molecules to deliver amino acids to the ribosome, where ribosomal RNA (rRNA) links amino acids together to form proteins.
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when will i learn to be alone
how can i learn to let go of you
everyone can see me
but i can't see myself
have you seen the key that
leads to me
'cause i need to find myself
i'm running out
i'm running out of time
to find myself
why do i suck at putting smiles on their faces
why am i only funny to myself
how come no one understands what i say
but i thought i didn't know myself
i hate everyone
only on certain days
i think you're all
annoyed by me
so i'll leave, and find myself