Understand Passive Transport Mechanisms

Front

The difference in the concentration of a substance from one location to another is called a _________.

Back

concentration gradient

Front

A molecule that diffuses down a concentration gradient goes from an area of _______ concentration into an area of ________ concentration.

Back

higher, lower

Front

Which of the following are forms of passive transport?

Back

diffusion & osmosis

Front

The higher the concentration of dissolved particles in a solution, the ______ the concentration of water molecules in that solution.

Back

lower

Front

A _______ solution has the highest concentration of particles.

Back

hypertonic

Front

A ________ solution has a higher concentration of water molecules.

Back

hypotonic

Front

The difference in the concentration of a substance from one location to another is called a ______.

Back

concentration gradient

Front

A solution with a higher level of solutes than the solution it is being compared to is called ______.

Back

hypertonic

Front

The word facilitate means to make easier. ____________ means that the transport protein makes it easier for a molecule that cannot directly cross the cell membrane to enter or exit the cell.

Back

facilitated diffusion

Front

In facilitated diffusion, molecules move___.

Back

down a concentration gradient