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Why do all molecules which have the property of antigenicity do not have the property of immunogenicity?
Because we know that all molecules that act as antigens produce an antibody so they have a property of antigenicity but not all give the immune response.
What does Macrophage act as?
Macrophages act as phagocytes (engulfing antigens) and digest them for specific defense of immune system to detect. They are non-specific, therefore, they just digest and excrete antigens.
When small molecules bind to self cell-surface proteins what do they act as?
They are called "haptens" (incomplete anitgens)
What are antigens determining blood type carried on?
Antigens, by definition, cause the body to produce antibodies which act against them. You inherit certain antigens which are on your red blood cells. Sometimes these antigens are absent from your RBC. If you are type B, you have B antigens. Type A has A antigens, AB has AB antigens and type O has no antigens. If you are type AB, you can receive AB blood from some one else.
Why food do not act as antigen?
Any food is a composite mixture of thousands of different molecules including nutrients as well as many potentially antigenic molecules. Different types of antigens present in food or emanations from food may evoke reactions within different immunological systems, and frequently within more than one.When ingested food antigens bind to IgE on the surface of intestinal mast cells, causing an immediate hypersensitivity reaction. Basophils may also participate if food antigens appear in the circulation. Foods that commonly cause true food allergies include peanuts, true nuts, shellfish, eggs, milk proteins, and wheat.
What is the most potent antigen?
Of all the foreign molecules that act as complete antigens, proteins are the most potent.
Why do all molecules which have the property of antigenicity do not have the property of immunogenicity?
Because we know that all molecules that act as antigens produce an antibody so they have a property of antigenicity but not all give the immune response.
Lymphocytes that act directly on antigens to destroy them or produce chemicals that are toxic to them called?
Lymphocytes that act directly on antigens to destroy them or produce chemicals that are toxic to them are called T4 cells. They are also known as T helper cells.
What does Macrophage act as?
Macrophages act as phagocytes (engulfing antigens) and digest them for specific defense of immune system to detect. They are non-specific, therefore, they just digest and excrete antigens.
What are lymphocytes formed in thymus gland that act on antigens?
t cells
When small molecules bind to self cell-surface proteins what do they act as?
They are called "haptens" (incomplete anitgens)
What are antigens determining blood type carried on?
Antigens, by definition, cause the body to produce antibodies which act against them. You inherit certain antigens which are on your red blood cells. Sometimes these antigens are absent from your RBC. If you are type B, you have B antigens. Type A has A antigens, AB has AB antigens and type O has no antigens. If you are type AB, you can receive AB blood from some one else.
Why food do not act as antigen?
Any food is a composite mixture of thousands of different molecules including nutrients as well as many potentially antigenic molecules. Different types of antigens present in food or emanations from food may evoke reactions within different immunological systems, and frequently within more than one.When ingested food antigens bind to IgE on the surface of intestinal mast cells, causing an immediate hypersensitivity reaction. Basophils may also participate if food antigens appear in the circulation. Foods that commonly cause true food allergies include peanuts, true nuts, shellfish, eggs, milk proteins, and wheat.
Why are chemicals produced by endocrine glands usually in the form of small molecules?
They act as signals. All they need to be is identifiable.
What are intramembrance pumps?
transport protieins may act as pumps moving ions or small molecules in either direction acroos the plasma membrane
What is the term used to describe the spread of molecules throughout the area?
Epitome spreading is the act of molecules self spreading. It can also be called mimicry. This is when molecules seem to mimic other molecules, but are replicating themselves.
What are the main molecules that act as catalyst in living things called?
Catalysts are thoese molecules which are added to the reaction to spead it up. They actually don't take part in the reaction. Thier presence is enough! You can have the eg of NICKEL. Thier magnetic field also affects the other molecules and forces them to react fast(up to some extent) and their molecular structure is also responsible.
