Semipermiable membrane of the cell.
Plants : Cell wall.
Animals : Cell membrane.
The cell membrane, also known as the plasma membrane, is the organelle that helps the cell keep its shape and determines what goes in and out of the cell. It acts as a semi-permeable barrier, regulating the flow of molecules in and out of the cell.
They are all controlled by the nucleus which is somewhat the "brain" of the cell. Hope this helps :)
T Cell
A cell culture is a controlled environment where cells are grown outside of their natural environment. Biologists use cell cultures to study cell behavior, test the effects of drugs or treatments, and understand cell function and responses in a controlled setting. This controlled environment allows researchers to manipulate variables and observe cellular processes in a controlled manner.
Protein Synthesis
The water is controlled by dikes and ditches.
Cell respiration is contolled by enzymes in order to prevent an explosion-like release of energy that could be fatal to a cell. Instead, the enzymes (cytochromes in the ETC) allow for a controlled release of energy that goes on to form the H+ gradient that synthesizes ATP.
The nucleus is the CEO of the cell and directs all of its' activities.
it controls what goes in and out of the cell.
It controls what goes in and out of a cell.
It controls what goes in and out of the cell.
Cell membrane