Substances can move into and out of cells through the cell membrane. The three main types of movement are diffusion, osmosis and active transport. 1  1. 2  2. 3  3. 4  4.
Definition. noun. Abbreviated form for messenger ribonucleic acid, the type of RNA that codes for the chemical blueprint for a protein (during protein synthesis). Supplement. In prokaryotes, mRNA is produced by splicing a large primary transcript from a DNA sequence.
MRNA is messenger RNA (mRNA) aka messenger ribosomal nucleic acid. it is an RNA molecule that carries copies of instructions for the assembly of amino acids into proteins from DNA (deoxyribo nucleic acid) to the rest of the cell. Proteins are assembled on ribosomes.