Osmosis

Osmosis is the net movement of water molecules across a partially permeable membrane from a region of higher concentration to a region of lower concentration

• Only tiny molecules can do osmosis, such as water molecules. Bigger molecules (such as sucrose) can't
• The water molecules are moving around randomly and can actually pass through the membrane both ways

Water moves in and out of cells by osmosis

• Tissue fluid surrounds the cells in the body-its basically just water with oxygen, glucose and stuff dissolved in it. It's squeezed out of the blood capillaries to supply the cells with everything they…