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Questions and Answers
How do antibodies act to protect the body against invading agents?
How do antibodies act to protect the body against invading agents?
- Only by activation of the complement system
- Neither by direct attack nor activation of the complement system
- By both direct attack and activation of the complement system (correct)
- Only by direct attack on the invader
What is the process called when multiple large particles with antigens on their surfaces are bound together into a clump?
What is the process called when multiple large particles with antigens on their surfaces are bound together into a clump?
- Lysis
- Neutralization
- Precipitation
- Agglutination (correct)
What is the term for the molecular complex of soluble antigen and antibody?
What is the term for the molecular complex of soluble antigen and antibody?
- Neutralization
- Precipitation (correct)
- Lysis
- Agglutination
What is the process called when antibodies cover the toxic sites of the antigenic agent?
What is the process called when antibodies cover the toxic sites of the antigenic agent?
What is the type of immunity that has been discussed?
What is the type of immunity that has been discussed?
What is the name of the system that is activated by antibodies to destroy the invader?
What is the name of the system that is activated by antibodies to destroy the invader?
What percentage of plasma proteins are typically composed of immunoglobulins?
What percentage of plasma proteins are typically composed of immunoglobulins?
What is the function of the variable portion of an antibody?
What is the function of the variable portion of an antibody?
What is the name of the antibody class that constitutes about 75% of the antibodies in a normal person?
What is the name of the antibody class that constitutes about 75% of the antibodies in a normal person?
How many binding sites do IgM antibodies have?
How many binding sites do IgM antibodies have?
What determines an antibody's properties in the tissues?
What determines an antibody's properties in the tissues?
What is the function of IgE antibodies?
What is the function of IgE antibodies?
What happens in response to a foreign antigen invading the body?
What happens in response to a foreign antigen invading the body?
How can temporary immunity be achieved without injecting an antigen?
How can temporary immunity be achieved without injecting an antigen?
How long do antibodies last in the body of the recipient?
How long do antibodies last in the body of the recipient?
What is the term for conferring immunity through the transfusion of antibodies or T lymphocytes?
What is the term for conferring immunity through the transfusion of antibodies or T lymphocytes?
How long do activated T cells last if transfused from another person?
How long do activated T cells last if transfused from another person?
What is the ability of the human body to resist damage from organisms or toxins?
What is the ability of the human body to resist damage from organisms or toxins?
What type of immunity is acquired after the body is first attacked by a bacterium, virus, or toxin?
What type of immunity is acquired after the body is first attacked by a bacterium, virus, or toxin?
What is the process of destroying swallowed organisms by the acid secretions of the stomach and the digestive enzymes?
What is the process of destroying swallowed organisms by the acid secretions of the stomach and the digestive enzymes?
What is the term for the resistance of the skin to invasion by organisms?
What is the term for the resistance of the skin to invasion by organisms?
What type of immunity is caused by a special immune system that forms antibodies and/or activated lymphocytes?
What type of immunity is caused by a special immune system that forms antibodies and/or activated lymphocytes?
What are the antibodies in the immune system called?
What are the antibodies in the immune system called?
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