A vaccine is effective because ________.Group of answer choicesthe secondary response of the adaptive immunity is faster and more efficient than the primary responsethe vaccine contains the lymphocytes necessary to fight infectionthe vaccine contains the antibodies necessary to fight infectionB-lymphocytes are unable to mount an immune response the first time they are exposed to a new pathogen
Question
A vaccine is effective because ________.Group of answer choicesthe secondary response of the adaptive immunity is faster and more efficient than the primary responsethe vaccine contains the lymphocytes necessary to fight infectionthe vaccine contains the antibodies necessary to fight infectionB-lymphocytes are unable to mount an immune response the first time they are exposed to a new pathogen
Solution
The correct answer is: the secondary response of the adaptive immunity is faster and more efficient than the primary response. Here's a step-by-step explanation:
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Introduction of Vaccine: A vaccine is introduced into the body. This vaccine contains weakened or inactivated parts of a particular pathogen (like a virus or bacteria), or toxins made by the pathogen.
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Primary Response: The immune system recognizes these foreign substances and mounts a primary immune response. B-lymphocytes (a type of white blood cell) produce antibodies that specifically target the pathogen present in the vaccine. This process can take several days to weeks and is the reason why there is often a delay between vaccination and immunity.
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Memory Cells: Some of the B-lymphocytes become memory cells. These cells "remember" the specific pathogen and remain in the body long after the primary response.
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Secondary Response:
Similar Questions
Which of the following is TRUE of adaptive immunity?Group of answer choicesIt is present at birthThe second response is faster and stronger than the first responsePrevious encounters with the foreign substance do not change the responseResponses are general, not specific
Using your knowledge of the third line of defence, explain why a different vaccine needs to be developed for each infectious disease.
What is the purpose of taking a vaccine?Multiple ChoiceTo prevent an infection by causing passive immunityTo prevent an infection by causing active immunityTo stimulate your nervous system to prevent future infectionsTo decrease the severity of an illness if you contract it
Vaccines protect individuals from infections by:Group of answer choicesDestroying the infectious agent within the external environmentinhibiting the growth of the infectious agent in the bloodStimulating the production of antibodies and providing immunity against the infectious agentinhibiting the amount of inflammation produced by an infectious agent
Which of the following is a feature true for the adaptive immune response only?ANSWERIt kills invaders.It distinguishes self from foreign.It is effective against diverse threats.The response is tailored to a specific antigen.
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