Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
7 Cards in this Set
- Front
- Back
passive transport
|
a process of moving substances across the cell membranes without any input of energy by the cell
|
|
diffusion
|
the movement of molecules from an area of higher concentration to an area of lower concentration
|
|
concentration gradient
|
the difference in the concentration of molecules across a distance
|
|
equilibrium
|
the concentration of molecules is the same throughout the space the molecules occupy
|
|
osmosis
|
the process by which water molecules diffuse across a cell membrane from an area of higher concentration to an area of lower concentration
|
|
hypotonic
|
when the concentration of solute molecules outside the cell is lower than the concentration in cytosol (water diffuses INTO the cell until equilibrium is established)
|
|
hypertonic
|
when the concentration of solute molecules outside the cell is higher than the concentration in the cytosol (water diffuses OUT of the cell until equilibrium)
|