bwG transport 12.4.24

Match the following

• Movement of particles from an area of concentration to an area of lower concentratioin

• Osmosis

• Diffusion of water molecules through a selectively permeable membrane

• Diffusion

• Amount of substance in a given space

• Concentration

• Allows some materials to pass through but keeps other materials out

• Selectively Permeable Membrane

Which best describes which directions molecules move during diffusion?

• from an area of equilibrium to an area of high concentration

• from an area of equilibrium to an area of low concentration

• from an area of low concentration to an area of high concentration

• from an area of high concentration to an area of low concentration

What is the process by which water diffuses across a selectively permeable membrane?

• active  transport

• osmosis

• simple diffusion

• facilitated diffusion

Movement across the cell membrane that does not require energy from the cell is called

• active transport

• passive transport

• mass transport

It is a type of passive transport which involves the movement of substances from a high concentration area to a low concentration area.

• effusion

• diffusion

• concentration gradient

Osmosis is a process that requires energy to transport substances in and out of the cell.

• True

• False

When molecules are evenly distributed throughout the cell, they are said to be in

• concentration gradient

• equilibrium

• homeostasis

A solution in which the concentration of dissolved substances is lower than the

 concentration inside a cell is

• hypotonic

• hypertonic

• isotonic

A solution in which the concentration of dissolved substances is higher than the

concentration inside a cell is

• hypotonic

• hypertonic

• isotonic

 

A solution in which the concentration of dissolved substances is equal to that of the

concentration inside a cell is

• hypotonic

• hypertonic

• isotonic