The soma is responsible for of the cell

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

it's diluted or concentrated

in a diluted solution, you can add a lot more solute but in concentrated only a little more can be added