BLOOD CARDIOVASCULAR SYSTEM LYMPHOID ORGANS
LYMPH NODES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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are soluble proteins secreted by activated B cells
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antigens
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antibodies
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plasma
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polypeptide
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Explanation:
Detailed explanation-1: -Soluble proteins secreted by plasma cells are called antibodies.
Detailed explanation-2: -Answer and Explanation: The proteins that are released from effector B cells to fight infections are (b) antibodies. Before being activated B cells bind to the antigen via B cell receptors (BCRs) on their surface. Two immunoglobulins, namely IgM and IgD, can serve as BCRs on the membrane of naive B cells.
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