Multiple Choice
Which of the following is not one of the three types of immunity?
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21. The Immune System
Introduction to the Immune System
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Which is a true statement about memory cells in the immune system?
A
Memory cells are only found in the innate immune system.
B
Memory cells are long-lived cells that provide a faster response upon re-exposure to the same antigen.
C
Memory cells are a type of red blood cell that remember pathogens.
D
Memory cells are responsible for producing antibodies immediately after an infection.
Verified step by step guidance1
Understand the role of memory cells in the immune system: Memory cells are part of the adaptive immune system, not the innate immune system. They are crucial for long-term immunity.
Identify the characteristics of memory cells: Memory cells are long-lived and can persist in the body for years, allowing the immune system to respond more rapidly upon re-exposure to the same antigen.
Differentiate memory cells from other cell types: Memory cells are not red blood cells; they are specialized lymphocytes, such as B cells and T cells, that retain information about pathogens.
Clarify the function of memory cells in antibody production: Memory cells do not produce antibodies immediately after an infection; instead, they facilitate a quicker and more efficient response upon subsequent exposures.
Conclude with the correct statement: Memory cells provide a faster response upon re-exposure to the same antigen, which is a key feature of the adaptive immune system.
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