Complete the statements about movement into and out of cells. Diffusion is the overall movement of particles down a concentration gradient. The energy for diffusion comes from the ........................................ energy of random movement of molecules and ions. Factors that affect diffusion include concentration gradient, ..................................., and ................................... . Osmosis is the movement of water by diffusion through a ................................... permeable membrane. The movement of particles through a cell membrane against a concentration gradient using energy from ................................... is called ................................... .
Identify the cell that has been placed in a highly concentrated salt solution. Give reasons for your answer. cell ................................... reasons ...................................
Water is required by all organisms. State two processes in organisms that use water as a solvent.