0
pentose sugars
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
What typoes of cells produce antigens?
All cells produce antigens, or cell surface markers. The only question is whether the antigens are self antigens which means they belong in the body or they're foreign antigens which means they are an invading bacteria or virus (or a cancerous cell).
What important ability to phospholipid by-layers give to cell membranes?
They provide self-healing properties.
Which integral proteins with carbohydrates sugars attached that stick out on the exterior surface of cell membranes help recognize self?
Receptor proteins
Which T cell inhibits the activity of other T cells?
Regulatory T cells (Treg) suppress the action of other T cells. This inhibits immune responses to self-antigens, aiming to prevent the immune system from attacking normal self cells.
What is major histocompatibility complex?
The major histocompatibility complex (MHC) is a large genomic region or gene family found in most vertebrates. It is the most gene-dense region of the mammalian genome and it plays an important role with the immune system, autoimmunity, and reproductive success. The proteins encoded by the MHC are expressed on the surface of cells in all jawed vertebrates, and display both self antigens (peptide fragments from the cell) and nonself antigens (fragments of invading microorganisms) to a type of white blood cell called a T cell that has the capacity to kill or co-ordinate the killing of pathogens and infected or malfunctioning cells.
Where are the antigens of the ABO blood group are located?
They are found on the cell membrane of every cell, and help to distingish 'self' cells from 'non self' cells
What typoes of cells produce antigens?
All cells produce antigens, or cell surface markers. The only question is whether the antigens are self antigens which means they belong in the body or they're foreign antigens which means they are an invading bacteria or virus (or a cancerous cell).
How does a B cell tell the difference between an invader cell and a body cell?
Antigens work as bar-codes to help the immune system differentiate between body cells and pathogens. Normally the body will not attack its own cells, but is programmed to attack those with foreign antigens.
How did cell membranes first appear on Earth?
There is not yet a definitive answer as to how cell membranes first evolved. One hypothesis is that cell membranes are descendant from naturally occurring micelles which combined with the first self-replicating molecules quite coincidentally. Another possibility is that cell membranes evolved as a competetive mechanism through active selection.
What important ability to phospholipid by-layers give to cell membranes?
They provide self-healing properties.
Are antigens self cells?
The immune system is usually non-reactive against "self" antigens under normal conditions.
Are membranes a body cells?
If your question is "are membranes body cells?" the answer is no. Like the skin around your body is the boundary of your physical self so the membrane is the boundary around an individual cell.
Autoantibodies are produced against?
self-antigens
What do T-cells check each cell for?
Most excellent question! The T cell checks cells to see if the antigens that are presented on MHC class I molecules are self or foreign. If it is self, then it is left alone. Otherwise it will decide that it needs to destroy.
What substances is NOT typically perceived as an antigen?
Self-antigens
What is an example of a self antigen?
A or B antigens of blood cells
Who are what produces the antibody?
Antigens are responsible for producing antibodies.An antigen (from antibody generator) originally defined as any molecule that binds specifically to an antibody, the term now also refers to any molecule or molecular fragment that can be bound by a major histocompatibility complex (MHC) and presented to a T-cell receptor. Self" antigens are usually tolerated by the immune system; whereas "Non-self" antigens are identified as intruders and attacked by the immune system. Autoimmune disorders arise from the immune system reacting to its own antigens.
