KX Modifier - SPECIFIC REQUIRED DOCUMENTATION ON FILE. KX -- SPECIFIC REQUIRED DOCUMENTATION ON FILE. (EFFECTIVE DATE 7/1/2002) This modifier may be used to indicate that specific required documentation is on file in the patient's medical record. Documentation must be submitted upon request.
Proteins are made of amino acids hooked end-to-end like beads on a necklace. To simulate. a protein, you will make a model of your protein using a long chenille stem (the fuzzy. covered wire) and colored beads.
Ribosomes are factories that manufacture proteins for cells. They are small (diameter about 10 nm or 10 millionths of a millimetre) ribonucleoprotein enzymes. A ribonucleoprotein is a structure consisting of protein and RNA (ribonucleic acid). In prokaryotes, the cytoplasm surrounding the nucleoid is rich in risosomes (and is called the riboplasm) - in bacteria proteins that. make up the ribosome are the most abundant proteins in the cytosol.