[Campbell Biology P.1011] Based on the provided text, which statement best describes the diff... | Practice Question

Based on the provided text, which statement best describes the difference between memory cells and plasma cells?

  • A: Plasma cells are long-lived and respond rapidly upon subsequent antigen exposure, while memory cells secrete antibodies.
  • B: Memory cells are short-lived effector cells that secrete antibodies, whereas plasma cells are long-lived and provide long-term protection.
  • C: Memory cells are long-lived and enable a rapid, strong response to subsequent antigen exposure, while plasma cells are short-lived and primarily secrete antibodies.
  • D: Both memory cells and plasma cells secrete antibodies, but only memory cells contribute to immunological memory.

Explanation

The text states that plasma cells are the 'effector forms' that 'secrete antibodies' and that memory cells are 'long-lived cells that can give rise to effector cells if the same antigen is encountered later in the animal's life', providing 'long-term protection' and enabling a faster, stronger secondary response.