B-lymphocytes are categorized as part of the adaptive branch of the immune system for all of the following reason but one.Which of the following is not one of the reasons B-lymphocytes are considered part of the adaptive immunity?
A) Their receptors will bind to only one antigen.
B) They are a first line of defense that can begin killing pathogens immediately.
C) They require costimulation from an activated T-helper cell.
D) They produce memory cells when activated.

Question

Quizplus · Accepted Answer

B-lymphocytes are not considered a first line of defense as they are part of the adaptive immunity, which is a slower response that develops after exposure to a pathogen. The other options are all correct reasons why B-lymphocytes are part of the adaptive immunity.

B-Lymphocytes Are Categorized as Part of the Adaptive Branch of the Immune