Which of the following statements is true regarding memory in humoral immunity?

Question

Which of the following statements is true regarding memory in humoral immunity? Check all that apply.

A.Memory lasts longer in humoral immunity than in cellular immunity.

B.Memory B-lymphocytes attack the antigen directly without the need to form plasma cells.

C.Memory B-lymphocytes are found mainly in the lymph nodes.

D.Plasma cells form within hours in primary exposure, creating a response so rapid that no noticeable signs of illness appear.

E.When memory B-lymphocytes attack an antigen, it is called the "primary response."

Explanation / Answer

Options A and C are correct.

B lymphyocytes which turn into memory and plasma cells on exposure to antigens last longer than memory T cells,

Memory B cells are primarily found in spleen and are recruited to lymphnodes where lymph is filtered and the antigens come in contact with memory B cells.

It takes days to weeks for plasma cell formation.

Primary immune response is mediated by IgM. Not memory B lymphocytes.

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