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 or messenger RNA is a nulceic acid that acts as a transferring agent. It copies the information encoded in the DNA in the form of sequences of the four nitrogen bases using the DNA as a template. However, like all other RNA, mRNA does not use the base Thymine like DNA does, instead it and all other RNA use Uracil.t copies the information encoded in the DNA in the form of sequences of the four nitrogen bases using the DNA as a template. However, like all other RNA, mRNA does not use the base Thymine like DNA does, instead it and all other RNA use Uracil.