f the water concentration inside a cell is higher than the water concentration outside the cell, water flows out of the cell. This method of molecular transport is called
A. exocytosis.
B. osmosis.
C. a sodium pump.
D. endocytosis.

Question

f the water concentration inside a cell is higher than the water concentration outside the cell, water flows out of the cell. This method of molecular transport is called
	A. 	exocytosis.
	B. 	osmosis.
	C. 	a sodium pump.
	D. 	endocytosis.

anonymous · Answer

This is so obvious...

anonymous · Answer

According to wikipedia, osmosis is the spontaneous net movement of solvent (water) molecules through a semi-permeable membrane into a region of higher solute concentration, in the direction that tends to equalize the solute concentrations on the two sides.

anonymous · Answer

In carrying out normal activities, cells use oxygen and produce carbon dioxide. The concentration of oxygen is higher in the blood than inside the cell, so oxygen moves into the cell. Similarly, carbon dioxide moves out of the cell into the blood because the concentration of carbon dioxide inside the cell is greater than the concentration outside the cell.

How are the small molecules of oxygen and carbon dioxide moving through the cell membrane?
	A. 	passive transport by diffusion
	B. 	active transport by endocytosis
	C. 	active transport by carrier proteins
	D. 	passive transport by osmosis