Osmotic adjustment or osmoregulation - osmotic stress, Biology

Osmotic adjustment or Osmoregulation - Osmotic Stress

If concentration of soluble matter (in the form of minerals and small organic molecules) builds up in the external medium, it will create a gradient demanding outward movement of water from the plant cells, thereby causing dehydration. Alternatively, it will create a pressure on the cells to take in the solutes and maintain osmotic equilibrium with its immediate environment. You will appreciate that no - organism can freely take these options indiscriminately.

Hence, many of them accumulate certain compatible solutes within the cells to attain osmotic equilibrium with their immediate surroundings. In general proline and glycinebetaine are important organic molecules that help bacterial and plant cells to alleviate such osmotic stress. The build up of carbohydrates, amino acids, polyhydric alcohol and other molecules due to water stress or high salt concentration is called osmotic adjustment or osmoregulation.

Posted Date: 1/18/2013 12:30:21 AM | Location : United States







Related Discussions:- Osmotic adjustment or osmoregulation - osmotic stress, Assignment Help, Ask Question on Osmotic adjustment or osmoregulation - osmotic stress, Get Answer, Expert's Help, Osmotic adjustment or osmoregulation - osmotic stress Discussions

Write discussion on Osmotic adjustment or osmoregulation - osmotic stress
Your posts are moderated
Related Questions
Hypothermia As the blood passes through the oxygenator, hypothermia machine allows the blood to cool to the required temperature. Generally, the temperature is brought dow

Define Investigative Techniques in Nutritional Biochemistry? It is an important component of this manual as it focuses on providing an understanding of biochemical methods, tec

What are the typical vegetation and the typical fauna of the tropical forests? In the vegetation of the tropical forests broadleaf evergreen trees predominate. On the top of th

Indications for Surgery :  Patients with moderate or severe tricuspid regurgitation that is functional will need tricuspid annuloplasty at the time of correction of mitral valve d

BIOLOGY IN DISPELLING MYTHS AND MISBELIEFS - Varieties of myths still exist in our society, and can be removed by the knowledge of Biology. Some of these are- 1.       Snake

Describe Pressure Controlled Ventilation (PCV) This is a pressure cycled mode (machine delivers a set pressure - the tidal volume generated depends on how compliant the lungs

Q. What is the relationship between the estrogen level and the LH level in the menstrual cycle? What is the function of LH in the menstrual cycle and when does its blood concentrat

STERNU M - It is long, naroow, flat vertical bone in the middle of the front wall of the chest. 15 cms long. It is dagger shaped having manubrium body & xiphoid process.

Induction of Defensive Barriers in Plants Several polymers deposited near surface of plants form an effective barrier against invasion or stress. Cuticle (which consists of a

Explain the Dietary Modifications - Obesity? The dietary modifications serve as a guide for the obese to make healthy food choices. The first step towards prescribing a diet fo