Navigation Links
Water management in cells

Water management is the key to regulating cell volume says Dutch researcher Bas Tomassen. He investigated the uptake and secretion of water by the plasma membrane of animal and human cells.

Cell volume is the outcome of a subtle balance between water uptake and secretion by the cell plasma membrane. A cell can regulate its volume by adjusting the salt concentrations in and around the cell. Exactly how this process works is still not known. Bas Tomassen has identified a number of important mechanisms that play a role in this process.

Increasing the salt concentration in the cell or decreasing the salt concentration around the cell leads to an influx of water. This principle is known as osmosis. Cells activate various channels to remove excess water and salt or osmotically active particles from the cell.

Tomassen studied cells that are highly sensitive for osmotic disruption. He discovered that cells permeable for water can more easily respond to changes in salt concentrations and that volume changes are facilitated by the presence of specific channels that transport water.

Slow organic reaction

In addition to water channels and ion channels, organic particles play an important role. If the salt balance is disrupted, so-called 'volume-regulated anion channels' are first of all activated. These ensure that chloride ions leave the cell. Further research revealed that the efflux of organics only starts one or two minutes later. This efflux only takes place if there is a large difference between the intracellular and extracellular salt concentrations. From this the researcher concluded that the efflux of organics is a second line of defence, which is only activated if there are considerable problems.

All organisms in the natural environment are confronted with salt balances in and around their cells. Plants, bacteria and fungi have an extra cell wall that provides the cell with additional protection. Animal cells, such as human cells, do not have this. They have developed other mechanisms, a number of which have been identified by Bas Tomassen.


'"/>

Source:Netherlands Organization for Scientific Research


Related biology news :

1. Study: Soap And Water Work Best In Ridding Hands Of Disease Viruses
2. GeneNotes - A novel information management software for biologists
3. Study of energy and health in Africa focuses spotlight on charcoal and forest management
4. Energy management in cells may hold key to cancer defense
5. Aquatic plants may hold key to advancing plant disease management
6. Saharas edge studied from ground, air and space to improve water management
7. Madagascan tropical forests return thanks to better management and well-defined ownership
8. Wisconsin scientists grow critical nerve cells
9. Spleen may be source of versatile stem cells
10. Elusive HIV shape change revealed; Key clue to how virus infects cells
11. Scientists rid stem cell culture of key animal cells
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:1/19/2017)... Jan. 19, 2017 Sensory Inc ... and security for consumer electronics, and i ... systems and cybersecurity solutions, today announced a global ... financial institutions worldwide to bolster security of data ... secure user authentication platforms they offer, innerCore now ...
(Date:1/18/2017)... 2017 MedNet Solutions , an ... entire spectrum of clinical research, is proud to ... for the organization in terms of corporate growth, ... products and services. The company,s exceptional achievements can ... iMedNet ™ – ...
(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 ...
Breaking Biology News(10 mins):
(Date:1/19/2017)... Research and Markets has announced the addition ... Type, Application - Global Opportunity Analysis and Industry Forecast, 2014-2022" ... ... is projected to reach $15,737 million by 2022 from $6,521 in ... Omic technologies segment accounted for more than half ...
(Date:1/19/2017)... and HOUSTON , Jan. 19, ... today announced the formation of its Medical/Clinical Advisory ... and industry veterans who enhance the range and ... accelerates development of its novel prenatal diagnostic tests.  ... clinical and strategic guidance for the company,s product ...
(Date:1/19/2017)... DUBLIN , Jan 19, 2017 Research and ... has announced the addition ... - Material, Application - Forecast to 2025" report to ... The report provides a detailed analysis on current ... Market forecasts till 2025, using estimated market values as the base numbers ...
(Date:1/19/2017)... , ... January 19, 2017 , ... ... product vigilance software to leading biopharmaceutical and medical device manufacturers and regulators, is ... fully 21 CFR Part 11-compliant email client designed to provide product vigilance departments ...
Breaking Biology Technology: