In the primary response to infection, what are secreted first from plasma cells?
- Correct Answer: antibodies
- pathogens
- platelets
- parasites
Explanation: Figure 17.18 In the primary response to infection, antibodies are secreted first from plasma cells. Upon re-exposure to the same pathogen, memory cells differentiate into antibody-secreting plasma cells that output a greater amount of antibody for a longer period of time.
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