Question

scientists can produce large quantities of a single, specific antibody in a lab to use as a medical treatment. based on the text, what cell type are they essentially mimicking the function of? a helper t cell. a phagocyte. a plasma cell. a memory cell. the text describes a fetus acquiring immunity from its mother and an adult receiving an injection of antibodies. what is the most significant similarity between these two situations? in both cases, the immunity was acquired by being exposed to a weakened pathogen. in both cases, the immunity is permanent and will last a lifetime. in both cases, the individuals own body is actively producing memory cells in both cases, the protection is temporary because it relies on transferred antibodies, not self - made memory cells.

Explanation:

1. Plasma cells are responsible for producing antibodies. So when scientists produce antibodies in a lab for medical treatment, they mimic the function of plasma cells. Helper T - cells assist immune responses but don't produce antibodies. Phagocytes engulf pathogens. Memory cells remember pathogens for future immune responses.
2. When a fetus acquires immunity from its mother and an adult receives an injection of antibodies, the protection is temporary as it relies on transferred antibodies rather than self - made memory cells. In neither case is the immunity due to exposure to a weakened pathogen. Also, the immunity is not permanent. And the body is not actively producing memory cells in these scenarios.

Answer:

1. C. A plasma cell
2. D. In both cases, the protection is temporary because it relies on transferred antibodies, not self - made memory cells.