What is it called when particles move across a membrane/barrier? Unbalance
Balance
Osmosis
Diffusion

this protocol provides a detailed procedure for nucleoprotein extraction from cultured cells and tissues in an efficient manner.

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.