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At the heart of the immune response is the ability to distinguish between "self" and "non-self." Every cell in your body carries the same set of distinctive surface proteins that distinguish you as "self." Normally your immune cells do not attack your own body tissues, which all carry the same pattern of self-markers; rather, your immune system coexists peaceably with your other body cells in a state known as self-tolerance. This set of unique markers on human cells is called the major histocompatibility complex (MHC). There are two classes: MHC Class I proteins, which are on all cells, and MHC Class II proteins, which are only on certain specialized cells.
What else can I help you with?
What are proteins in the er?
Most of the protein in the ER is contained in ribosomes which are attached to its surface.
What protein that projects from the outer surface of the membrane is termed?
The protein that projects from the outer surface of the membrane is termed as an extrinsic or peripheral membrane protein. These proteins are not embedded within the lipid bilayer but instead are attached to the surface of the membrane.
Protein attached to only one side of the plasma membrane?
Proteins attached to only one side of the plasma membrane are known as monotopic proteins. These proteins are anchored to the membrane through a single hydrophobic region, rather than spanning the entire membrane like transmembrane proteins. Monotopic proteins play a variety of roles in cell signaling, transport, and structural support.
What organelle combines proteins?
the ribosomes produce protein...these small structures function as factories to produce proteins. Ribosomes may be attached to the endoplasmic reticulum, or they may float in the cytoplasm. I'm not so sure if they COMBINE the proteins.
What does a rugh endoplasmic ruticulum do?
The rough endoplasmic reticulum is involved in protein synthesis and processing. It has ribosomes attached to its surface, which help in translating mRNA into proteins. The proteins made in the rough endoplasmic reticulum are then transported to other parts of the cell.
What are proteins in the er?
Most of the protein in the ER is contained in ribosomes which are attached to its surface.
What protein that projects from the outer surface of the membrane is termed?
The protein that projects from the outer surface of the membrane is termed as an extrinsic or peripheral membrane protein. These proteins are not embedded within the lipid bilayer but instead are attached to the surface of the membrane.
Protein attached to only one side of the plasma membrane?
Proteins attached to only one side of the plasma membrane are known as monotopic proteins. These proteins are anchored to the membrane through a single hydrophobic region, rather than spanning the entire membrane like transmembrane proteins. Monotopic proteins play a variety of roles in cell signaling, transport, and structural support.
What is the function of rought endoplasmic reticulum?
To modify proteins, basically. To place simple carbohydrates on the proteins and give the protein and the chaperon's that fold them a place protected to do their work. Also ships the protein for further modification to the Golgi body.
What organelle combines proteins?
the ribosomes produce protein...these small structures function as factories to produce proteins. Ribosomes may be attached to the endoplasmic reticulum, or they may float in the cytoplasm. I'm not so sure if they COMBINE the proteins.
What does a rugh endoplasmic ruticulum do?
The rough endoplasmic reticulum is involved in protein synthesis and processing. It has ribosomes attached to its surface, which help in translating mRNA into proteins. The proteins made in the rough endoplasmic reticulum are then transported to other parts of the cell.
What is the description of surface carbohydrates?
Surface carbohydrates are molecules located on the outer surface of cells that play vital roles in cell-cell recognition, adhesion, and signaling. They are involved in various biological processes, such as immune response, pathogen recognition, and cellular communication. These carbohydrates are often attached to proteins or lipids on the cell membrane and can be diverse in structure and function.
Which integral proteins with carbohydrates sugars attached that stick out on the exterior surface of cell membranes help recognize self?
Glycoproteins are integral proteins with carbohydrate sugars attached that stick out on the exterior surface of cell membranes to help recognize self. They play a crucial role in cell recognition and immune response by distinguishing between self and non-self cells.
What makes up a plasma membrane?
All (mostly) membranes of the cell including those of organelles are made up of lipids, proteins and polysaccharides (like cholesterol). The lipids and proteins are called glycolipids and glycoproteins.
Rough ER function?
The rough endoplasmic reticulum (ER) is involved in protein synthesis and folding, with ribosomes attached to its surface. It plays a key role in processing and modifying proteins before they are transported to other parts of the cell or outside of it. Additionally, the rough ER helps in the synthesis of membrane-bound proteins and proteins to be excreted from the cell.
The rough ER is the portion of the ER that?
The rough ER is the portion of the endoplasmic reticulum that has ribosomes attached to its surface. These ribosomes are involved in protein synthesis, producing proteins that are then transported and processed within the rough ER.
Where does the plasma membrane of animals contain carbohydrates?
Carbohydrates are found on the external surface of the plasma membrane in animals, attached to proteins or lipids. These carbohydrate chains play important roles in cell signaling, cell recognition, and cell-to-cell interactions.
