PATHOLOGY MCQ
IMMUNE RESPONSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Active immunity is the stimulation of the immune system to produce antigen-specific antibodies.
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Vaccines produce immunological memory similar to that acquired by having the natural disease.
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The most common way to acquire passive immunity is to have the natural disease.
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Killed forms of a microorganism can act as an antigen.
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Detailed explanation-1: -Passive Immunity. Passive immunity is provided when a person is given antibodies to a disease rather than producing them through his or her own immune system. A newborn baby acquires passive immunity from its mother through the placenta.
Detailed explanation-2: -Answer and Explanation: The correct statement about active and passive immunity is D. active and passive humoral immunity are both mechanisms of adaptive immunity that use antibodies.
Detailed explanation-3: -Option 2: When our body encounters a pathogen for the first time, then the body elicits the primary immune response. This is a correct statement. Therefore, this is an incorrect answer.
Detailed explanation-4: -The correct answer is Humoral immunity. Active immunity: Active immunity occurs when the body uses its own immunity to protect itself from pathogens. It leads to the production of antibodies.