1 Recognizing self
2 Structure of the immune ... reading
5 See also
The immune system defends the body by recognizing agents that represent self
and those that represent non-self , and ...
... because their receptors could make a good molecular fit with healthy self
antigen. If they would be let loose without any further processing, many ... autoimmune reactions, and those that show high affinity to healthy self
antigen are killed via apoptosis.
Be aware that the above paragraphs ...
Major histocompatibility complex
... design of the MHC-TCR interaction is that T cells should ignore self
peptides while reacting appropriately to the foreign peptides. Foreign ... that the vast majority of the time, Mhc are kept busy presenting self
-peptides, which the T cells should appropriately ignore. A full-force ...
... An autotroph (in Greek eauton = self
and trophe = nutrition) is an organism that produces its own cell mass and organic compounds from carbon dioxide as sole carbon source, using ...
... Unlike other fishes, hamlets seem quite at ease mating in front of divers, allowing observations in the wild to occur readily. They do not practice self
fertilization, but when they find a mate, the pair takes turns between which one acts as the male, and which acts as the female, through multiple ...
... id (an individual's basic needs and instincts), the superego (personal and cultural values and norms), and the ego (the central, organizing self
, whose job it is to satisfy the id but not upset the superego ).  (See also Ego, Superego and Id .)
The Swiss psychiatrist Carl Gustav ...
... surface, they are said to be double positive (CD4 + CD8 + ).
Double positive cells move deeper in the cortex, where they get presented with self
and foreign antigens in a complex with type I and type II MHC molecules by type II and type III cortical epithelioreticular cells . Only those cells ...
Unsolved problems in biology
... devices and computers , but what are the electronic properties of DNA? Does Junk DNA function as molecular garbage?
Consciousness / self
. What is it? Why is it necessary for many animals (especially mammals ) to sleep ? Or dream , come to that? What are the inheritable ...
... are obligate intracellular parasites ; they can only reproduce by invading and taking over other cells as they lack the cellular machinery for self
reproduction. The term virus usually refers to those particles which infect eukaryotes (multi-celled organisms and many single-celled organisms), ...