News tagged with cytoplasm
How protein networks stabilize muscle fibers: Same mechanism as for DNA
The same mechanism that stabilises the DNA in the cell nucleus is also important for the structure and function of vertebrate muscle cells. This has been established by RUB-researchers led by Prof. Dr. Wolfgang Linke (Institute ...
Jan 23, 2012 |
not rated yet |
0
Novel technique could help boost IVF success and reduce multiple pregnancies
A new technique successfully used in mice to identify embryos likely to result in a successful pregnancy could be used in humans, potentially boosting IVF success rates and helping to reduce the number of multiple births ...
Jan 03, 2012 |
not rated yet |
0
Built-in 'self-destruct timer' causes ultimate death of messenger RNA in cells
Researchers at Albert Einstein College of Medicine of Yeshiva University have discovered the first known mechanism by which cells control the survival of messenger RNA (mRNA) -- arguably biology's most important molecule. ...
Dec 22, 2011 |
5 / 5 (5) |
1
|
Nuclear receptors battle it out during metamorphosis in new fruit fly model
Growing up just got more complicated. Thomas Jefferson University biochemistry researchers have shown for the first time that the receptor for a major insect molting hormone doesn't activate and repress genes ...
Oct 06, 2011 |
not rated yet |
0
|
Control gene for developmental timing discovered
University of Alberta researchers have identified a key regulator that controls the speed of development in the fruit fly. When the researchers blocked the function of this regulator, animals sped up their rate of development ...
Sep 28, 2011 |
4.5 / 5 (2) |
1
|
New technique elucidates dynamics of plant cell metabolites
A new technique developed by researchers at RIKEN has clarified the location and dynamics of specific metabolites in a single cell of the alga Chara australis. The findings reveal that these metabolites are re ...
Sep 13, 2011 |
not rated yet |
0
Combating fungal diseases
(Medical Xpress) -- Scientists at the Friedrich Miescher Institute for Biomedical Research have discovered a potential new approach for inhibiting the growth of pathogenic fungi. Their findings on the mechanism ...
Aug 30, 2011 |
not rated yet |
0
Lawson researchers take control of cancer
According to the Canadian Cancer Society, one in four Canadians will die of cancer. This year alone, the disease will kill an estimated 75,000 people. With incidence rates on the rise, more cancer patients are facing grave ...
Jul 28, 2011 |
not rated yet |
0
Shedding light on cell mechanism which plays a role in such diseases as Huntington's and Parkinson's
(Medical Xpress) -- New research from scientists at the University of Cambridge provides critical insight into the formation of autophagosomes, which are responsible for cleaning up cellular waste.
Jul 26, 2011 |
4 / 5 (1) |
0
|
Weill Institute researchers uncover basic cell pathway
Although all cells in an organism have the same DNA, cells function differently based on the genes they express. While most studies of gene expression focus on activities in the cell's nucleus, a new Cornell study finds that ...
May 24, 2011 |
not rated yet |
0
|
New technique sheds light on the mysterious process of cell division
(PhysOrg.com) -- Using a new technique in which models of primitive cells are constructed from the bottom up, scientists have demonstrated that the structure of a cell's membrane and cytoplasm may be as important ...
May 18, 2011 |
5 / 5 (1) |
1
|
Researchers explain how animals sense potentially harmful acids
All animals face the challenge of deciding which chemicals in the environment are useful and which are harmful. A new study greatly improves our understanding of how animals sense an important class of potentially ...
May 16, 2011 |
not rated yet |
0
|
Cell viscosity research improves our knowledge of cancer cells
EU-funded researchers from Germany and Poland have made some groundbreaking discoveries about cell cytoplasm viscosity, which could further our knowledge of the cytoplasm of cancer cells.
Nanotechnology / Bio & Medicine
May 16, 2011 |
5 / 5 (2) |
0
RNA spurs melanoma development
Traditionally, RNA was mostly known as the messenger molecule that carries protein-making instructions from a cell's nucleus to the cytoplasm. But scientists now estimate that approximately 97 percent of human RNA doesn't ...
May 10, 2011 |
not rated yet |
0
|
Salmonella utilize multiple modes of infection
Scientists from the Helmholtz Centre for Infection Research (HZI) in Braunschweig, Germany have discovered a new, hitherto unknown mechanism of Salmonella invasion into gut cells: In this entry mode, the bacteria exploit the mu ...
Apr 21, 2011 |
not rated yet |
0
Cytoplasm
The cytoplasm is the part of a cell that is enclosed within the plasma membrane. In eukaryotic cells, the cytoplasm contains organelles, such as mitochondria, which are filled with liquid that is kept separate from the rest of the cytoplasm by biological membranes. The contents of the cell nucleus are not part of the cytoplasm and are instead called the nucleoplasm. The cytoplasm is the site where most cellular activities occur, such as many metabolic pathways like glycolysis, and processes such as cell division. The inner, granular mass is called the endoplasm and the outer, clear and glassy layer is called the cell cortex or the ectoplasm.
The part of the cytoplasm that is not held within organelles is called the cytosol. The cytosol is a complex mixture of cytoskeleton filaments, dissolved molecules, and water that fills much of the volume of a cell. The cytosol is a gel, with a network of fibers dispersed through water. Due to this network of pores and high concentrations of dissolved macromolecules, such as proteins, an effect called macromolecular crowding occurs and the cytosol does not act as an ideal solution. This crowding effect alters how the components of the cytosol interact with each other.
For more information about Cytoplasm, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
