OBJECTIVE LIFE SCIENCE
SIGNALLING IMMUNOLOGY CANCER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which type of immunity produces no memory cells?
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Passive
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Active
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Natural
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Artificial
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Explanation:
Detailed explanation-1: -Active immunity involves the production of antibodies by the body itself and the subsequent development of memory cells. Passive immunity results from the acquisition of antibodies from another source and hence memory cells are not developed.
Detailed explanation-2: -In addition to “fighting off” these pathogens, active immunity is important because it lasts a long time in the form of immunologic memory. Immunologic memory consists of B and T cells that can recognize a particular pathogen (see “Adaptive immune system").
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