Navigation Links
Turgor


Turgor (also called turgor pressure or osmotic pressure) is the pressure that can build in a space that is enclosed by a membrane that is permeable to a solvent such as water but not to solutes.

A biological cell, for example a plant cell, contains ions, sugars, amino acids, and other substances. In a hypotonic environment, water flows across the plasma membrane into the cell (since the concentration of water is lower inside the cell than outside), causing it to expand. The cell wall of a plant cell restricts the expansion, causing the cell to press against the wall. The resulting pressure is called turgor.

The osmotic pressure π of a dilute solution can be calculated using the formula

where

M is the molarity
R is the molar gas constant
T is absolute temperature (i.e. measured in kelvin).

Note the similarity of the above formula to the ideal gas law.

See also


'"/>


(Date:1/12/2017)... , Jan. 12, 2017  Trovagene, Inc. (NASDAQ: ... (ctDNA) technologies, today announced that it has signed agreements ... and the Middle East ... milestone marks the first wave of international distribution agreements ... and blood samples. The initial partners will ...
(Date:1/12/2017)... and PUNE, India , January 12, 2017 ... Opportunities and Forecasts, 2015 - 2022," projects that the global biometric technology market is ... 19.4% from 2016 to 2022. Continue Reading ... ... ...
(Date:1/11/2017)... , Jan. 11, 2017  Michael Johnson, co-founder of Visikol ... Capital Group, Inc., has been named to the elite "Forbes 30 ...  was one of 600 people in 20 fields nationwide to be ... of the 15,000 applicants were selected. ... He is currently a PhD candidate at Rutgers ...
Breaking Biology News(10 mins):
Other biology definition