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Is there periplasmic space in both gram positive and gram negative?
The periplasm is a region in the cell wall of Gram-negative bacteria
In a cell what is the periplasm?
This refers to the area around the plasma membrane. In a bacterium, the area between the plasma membrane and the the bacterial cell wall.
What is the function of porins?
Porins are proteins that are located in the outer membrane a bacteria. They function to form a water-filled pore through the membrane. The porin channel allows the diffusion of small hydrophilic (water-loving) molecules through to the periplasm.
What layer is beneath the outer membrane?
The layer beneath the outer membrane is called the periplasmic space or the periplasm. It is a gel-like region that contains proteins and other molecules, and it separates the outer membrane from the inner membrane in Gram-negative bacteria.
Weblike membrane located between the outer and inner membrane?
The weblike membrane located between the outer and inner membrane is called the periplasmic space or periplasm. It contains the cell wall in bacteria and plays a role in protecting the cell from external stressors and providing structural support.
What are some nine letter words with 4th letter I and 7th letter A and 9th letter M?
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern ---I--A-M. That is, nine letter words with 4th letter I and 7th letter A and 9th letter M. In alphabetical order, they are: periplasm
What is periplasmic space?
The periplasmic space or periplasm is a space between the inner cell membrane and external outer membrane of bacteria, or any other equivalent space in other organisms. It may constitute up to 40% of the total cell volume in gram negative species, and is drastically smaller in gram positive species. The space contains a loose network of peptidoglycan chains, as well as a gel containing hydrolytic and degradative enzymes.
Are methanogens gram positive?
Most are not. Gram positive archaea have a thick, single cell membrane. Gram negative archaea have two thinner membranes with a region in between them called the periplasm. The periplasm make make up 40% of certain archaea bacteria. The illustrated mechanisms of methanogen metabolism all require a membrane across which a Na+ and H+ chemical-electric gradient can be produced. This is not possible in gram positive archaea.There may be another mechanism of metabolism which yields methane. Those methanogens that make use of the substrates H2+CO2, formate, methanol, methylamines and acetate are all gram negative.
What are some nine letter words with 3rd letter R and 4th letter I and 6th letter L and 9th letter M?
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 3 words with the pattern --RI-L--M. That is, nine letter words with 3rd letter R and 4th letter I and 6th letter L and 9th letter M. In alphabetical order, they are: curialism periplasm serialism
Spirochetes?
Spira = coil, chaete = hair 2) Gram negative, helical flexible cells 3) Unique motility enables movement through thick viscous environments (mud). 4) Flexible cell wall with "corkscrew" motility via axial filament contained within periplasm (endoflagella). 5) Difficult or impossible to cultivate. 6) Free-living aquatic; reside on or in animals. 7) Spirochaeta = anaerobes or facultative anaerobes 8) Leptospira = aerobic
What correctly describes some aspect of protein secretion from prokaryotic cells?
Prokaryotic cells secrete proteins using the Sec-dependent pathway, where proteins are synthesized with a signal peptide that targets them to the Sec translocase for transport across the cytoplasmic membrane. Once in the periplasm, proteins can be further transported across the outer membrane via specialized secretion systems such as Type II or Type III secretion systems.
What is periplasmic flagella?
Periplasmic flagella do not extend outside of the cell's outer membrane, but stay wrapped around the inner membrane compartment of the cell. These bacteria move by twisting their bodies like a cork screw. For more information about this, check out the spirochete flagella.
