What is it called when molecules go from an area of high concentration to low concentration?
Diffusion. During diffusion, substances move from an area of high concentration to an area of low concentration, until the concentration becomes equal throughout a space. Image showing the process of diffusion across the plasma membrane. Initially, the concentration of molecules is higher on the outside.
Do molecules move from areas of low concentration to high concentration or high concentration to low concentration What about during active transport?
During active transport, substances move against the concentration gradient, from an area of low concentration to an area of high concentration. This process is “active” because it requires the use of energy (usually in the form of ATP).
Why does water move from low to high concentration?
Osmosis is the diffusion of water molecules across a semipermeable membrane from an area of lower concentration solution (i.e., higher concentration of water) to an area of higher concentration solution (i.e., lower concentration of water). Water moves into and out of cells by osmosis.
Why do molecules move from high to low concentration?
The kinetic energy of the molecules results in random motion, causing diffusion. it is the random motion of the molecules that causes them to move from an area of high concentration to an area with a lower concentration. Diffusion will continue until the concentration gradient has been eliminated.
Is osmosis from a high to low concentration?
Osmosis is the diffusion of water molecules, from a region of higher concentration to a region of lower concentration, through a partially permeable membrane. Partially permeable membranes are also called selectively permeable membranes or semi-permeable membranes.
Is hypertonic high or low concentration?
Hypertonic: The solution with the higher concentration of solutes. Hypotonic: The solution with the lower concentration of solutes.