Water moves both ways across a membrane (into and out of a cell). The net (total) change depends on how much water is moving each way (which depends on a lot of factors like salinity, concentration, charges, temperature, etc).
Is called leaking, unless the membrane in semipermeable and the there is are two different concentrations of solute on either side, in which case it is called 'osmosis'.
From high concentration to low concentration. This is called osmosis.
Yes. It is called Osmosis. Particles move across the membrane in order to balance the concentration of particles on both sides of the membrane. Since the membrane tends to block the larger particles, its the smaller molecules that move, so what happens across membranes is that the motion (of say water) is from low concentration toward higher - but the result is to even the concentration on both sides of the membrane, Pure diffusion is always from higher concentration to lower.
During osmosis water moves in and out of the cell equally in both directions.
Transverse waves will move across the direction of travel.
Water particles (molecules) move transversely to the direction of propagation of the wave. That means that as the wave moves out across the water, which is its direction of propagation, the water molecules move up and down (transversely) to create the crests and troughs of the wave.
diffusion or osmosis (diffusion of water)
Osmosis is not a molecule. It is the flow of water through cell membranes from areas of high concentration to areas of low concentration.
by exocytosis and endocytosis
it will died