UAACGA
just so you know T=A/G=C/A=U
A system is contained by its boundary; therefore, the size of a system is limited by its boundary.
Explanation:
Simple Diffusion across the Cell (Plasma) Membrane The structure of the lipid bilayer allows only small, non-polar substances such as oxygen and carbon dioxide to pass through the cell membrane, down their concentration gradient, by simple diffusion.
