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A given pathogen will provoke either a cell-mediated response or an antibody-mediated response but not both?
This statement is not accurate. Pathogens can provoke both cell-mediated and antibody-mediated responses at the same time. The type of immune response generated depends on the specific characteristics of the pathogen and the immune system of the host.
Explain briefly the contents of the Landsteiner's rule of reciprocity?
Landsteiner's rule states that when an antigen is on a red blood cell, the corresponding antibody is never present simultaneously. Instead, the reciprocal red cell antigen is present in the plasma or serum.(Ex. A type A individual has anti-B in their serum.)
What is Harmless variant of a pathogen that stimulates a hosts immume system to mount a defense against the pathogen?
A harmless variant of a pathogen that stimulates a host's immune system is known as a vaccine. Vaccines contain weakened or inactivated parts of the pathogen, such as proteins or sugars, which provoke an immune response without causing disease. This prepares the immune system to recognize and fight the actual pathogen if the host is exposed in the future. By training the immune system in this way, vaccines help prevent infections and contribute to herd immunity.
How was the name antigen derived?
The term "antigen" is derived from a combination of "antibody" and "generator." It was coined in the early 20th century to describe substances that can provoke an immune response by generating specific antibodies. Essentially, antigens are molecules or molecular structures that are recognized by the immune system, leading to the production of antibodies that target them.
Can an antigen provoke an immune response?
Yes, it's basically the only thing that does.
What is an antibody and antigen?
Antigens are substances that provoke an immune response (they're the ultimate target for the immune system). Antibodies are simply proteins that are secreted as a result of the antigen provoked immune response. In short, antigens cause the disease and antibodies cure it.
What are the meaning of actigen and antibodies?
Actigen refers to a specific substance that can provoke an immune response, often a part of a pathogen like bacteria or viruses. Antibodies are proteins produced by the immune system in response to antigens; they recognize and bind to specific antigens to neutralize or mark them for destruction by other immune cells. Together, actigens and antibodies play crucial roles in the body’s defense against infections.
Is provoke a misnomer?
Provoke is a misnomer. Pro means prefix of positive and provoking is something negative because it means to hurt someone or something.
How do you pronounce 'stimuli'?
STIMULI is the plural of "stimulus", an action intended to provoke another action or response. Pronounced "STIM-you-lie". (Don't provoke Stim!)
What is an autoantigen?
An antigen is an antibody generator which is introduced to the body to provoke a reaction. When appropriate an autoantigen is introduced for specific autoimmune issues.
Is endotoxin an allergen?
No, endotoxin is not considered an allergen. Endotoxins are components of the outer membrane of Gram-negative bacteria and can trigger strong immune responses, but they do not cause allergic reactions in the same way that allergens do. Allergens typically provoke an immune response mediated by IgE antibodies, whereas endotoxins primarily stimulate the innate immune system and can lead to inflammation and systemic effects.
What is the noun of provoke?
The noun form of "provoke" is "provocation." It refers to the act of provoking or inciting someone to action, response, or emotion. Provocation can involve stimulating a reaction, often in a negative or challenging context.
