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The main importance of membrane proteins is its specific functions. The amount of proteins in membranes varies from 25 to 75% of the membrane constitution. The amount and types of membrane proteins are highly variable.
To give a few examples:
In plasma membrane , there are transmembrane proteins associated with lipids, either "single" or "multipass" proteins. Examples of this kind of proteins are the porins (present in different types of bacteria) and membrane receptors that react with antigens triggering signal transduction cascades to the cell interior in order to generate a cellular response (e.g., insulin growth factor recepetor or IGFR, fibroblast growth factor receptor or FGFR, nerve growth factor receptor or NGFR, plateled-derived growth factor receptor or PDGFR, etc.).
On the other hand, we have the spectrin, a cytoskeletal protein noncovalently associated with the cytoplasmic side of the erythrocyte cell membrane. Also, we have the glycophorin A in erythrocyte plasma membrane, however with an uncertain function.
In mitochondria, the are several kind of membrane-associated proteins, such as cytochromes, crucial for electron transport during "cell respiration".
In bacteria, we found the bacteriorhodopsin, with light-absorbing activity.
What else can I help you with?
Important peritoneal folds do not include the?
Important peritoneal folds include the greater omentum, lesser omentum, mesentery, and mesocolon. The peritoneal lining itself is not considered an important peritoneal fold.
What is the simple squamous epithelium that lines the peritoneal cavity called?
The simple squamous epithelium that lines the peritoneal cavity is called mesothelium. It is a single layer of flat cells that help protect and cushion the organs within the peritoneal cavity.
Do females have a peritoneal cavity?
Yes, females have a peritoneal cavity. The peritoneal cavity is a space in the abdominal cavity that contains the abdominal organs such as the stomach, liver, and intestines. Both males and females have this cavity in their abdominal area.
What is another name for the peritoneal cavity?
I don't think there is another name for the peritoneal cavity. the peritoneal cavity is specifically for the potential space between the parietal and visceral portions of the peritoneum. hope this helps ^_^
What is the meaning of peritoneal?
The meaning of peritoneal actually describes the transparent membrane that is found in the abdomen and that lines the cavity of the abdomen.
What is the term for organs that lie within the abdominal cavity but not within the peritoneal cavity?
The term for organs that lie within the abdominal cavity but not within the peritoneal cavity is "retroperitoneal organs." These organs include the kidneys, adrenal glands, pancreas, and parts of the gastrointestinal tract. They are positioned behind the peritoneum, a membrane that lines the abdominal cavity.
What are two types of dialysis?
There are two methods of dialysis in use: hemodialysis (blood dialysis) and peritoneal dialysis (dialysis in the abdominal cavity). In hemodialysis, the dialysis membrane is made up of cellophane or other synthetic material that assists in the removal of impurities from the blood by their passage through these semipermeable membranes in a fluid bath. In peritoneal dialysis, the surface area of the peritoneum acts as the membrane. Dialysis fluid is introduced into the peritoneal cavity and then periodically removed along with the waste products. This procedure may be done at intervals throughout the day or during the night.
What are the names for membranes with hair-like structures on them?
cilia
What are the sheets of peritoneal membrane that hold the digestive tract in place?
mesenterymesenteriesThe sheets of peritoneal membrane that hold the digestive tract in place are called mesenteries. The innermost tissue layer of the alimentary canal is the mucosa.
What is the difference between pericardial pleural and peritoneal varieties?
pleural membranes are separated from parietal by a thin film of watery fluid and usually cover an internal organ like lungs. pericardial membranes surround the heart peritioneal membranes line the abdominopelvic cavity So basically, the only difference is what each variety membrane surrounds or covers.
Important peritoneal folds do not include the?
Important peritoneal folds include the greater omentum, lesser omentum, mesentery, and mesocolon. The peritoneal lining itself is not considered an important peritoneal fold.
What is the simple squamous epithelium that lines the peritoneal cavity called?
The simple squamous epithelium that lines the peritoneal cavity is called mesothelium. It is a single layer of flat cells that help protect and cushion the organs within the peritoneal cavity.
What is the other name for the swelling of the peritoneal?
Peritonitis is the inflammation of abdominal membranes, most commonly due to bacterial infection. Peritonitis is life threatening if not treated promptly. Treatment options include hospitalisation, antibiotics and surgery.
Should it be diffuse peritoneal and omental studding or diffused peritoneal and omental studding?
diffuse
When comparing hemodialysis and peritoneal dialysis it can be said that?
When comparing hemodialysis and peritoneal dialysis, it can be said that
Why are you nauseous with peritoneal dialysis?
"Handbook of Peritoneal Dialysis".....available on Amazon.com is a good reference
Why can sperm enter the peritoneal cavity?
Because the female reproductive tract is continuous with the peritoneal cavity through the fallopian tubes, it is possible for sperm to enter the peritoneal cavity.
