Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards
share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Water potential & fl

For 330 Water potential and flow, many from Taiz & Zeiger 2002

TermDefinition
Bulk flow Movement of groups of molecules en masse, most often in response to a pressure gradient; also referred to as , mass flow.
Capillarity Movement of water along a capillary tube due to surface tension; also known as caplary action.
Diffusion Net movement of particles from high to low concentration due to random thermal agitation.
Flaccid cell A plant cell having a turgor pressure near zero.
Hydrogen bonds Weak electrostatic attraction between water molecules.
Matric potential A component of water potential caused by the adhesion of water molecules to insoluble solids.
Osmosis Spontaneous net movement of solvent molecules through a semi-permeable membrane in the direction that tends to equalize the solute concentrations on the two sides
Osmotic potential The effect of dissolved solutes on water potential; also known as solute potential.
Pressure potential The positive hydrostatic pressure within cells; also referred to as turgor pressure
Selectively permeable Allows movement of water and other small uncharged substances more readily than the movement of larger solutes and charged substances; also known as semi-permeable.
Solvent Able to dissolve other substances.
Surface tension The attraction of molecules at the surface of a liquid.
Transpiration Water movement through stomata from plants to the atmosphere.
Turgid cell A swollen plant cell exerting positive pressure against the cell wall.
Turgor pressure Positive hydrostatic pressure within plant cells; also referred to as pressure potential.
Water potential The potential energy of water relative to pure water at standard conditions
Created by: mdcoleman