Answer:
I'm pretty sure they do so it's yed
What I know is that amino acid has side chain, amine groupe ,and groupe of carboxyl so what make them difference is side group where the is 20 different R-group which give each individual characteristics
The term in question is referred to as osmoregulation.
Since water and its soluted metabolites are key to the survival and normal function of the cell, there are many membrane proteins that regulate the exchange of water, ions and other osmolites between the cell and its surroundings.
DNA needs to replicate before cells divide to give the complete set of genetic instructions to its daughter cells, (or ensures that each new cell inherits all of the genetic traits of the parent cell).
Hope this helps! :D
~PutarPotato
