A student researching the immune system has taken notes:
• The immune system distinguishes between self and non-self cells • T cells coordinate immune responses and attack infected cells • B cells produce antibodies that neutralize pathogens • Memory cells enable faster responses to previously encountered threats • Immunization creates memory without causing disease
The student wants to explain how vaccination provides long-term protection.
The immune system distinguishes between the body's own cells and foreign invaders.
Vaccination creates immune memory cells that enable faster, stronger responses when the actual pathogen is encountered—providing long-term protection without causing disease.
T cells coordinate immune responses while B cells produce antibodies.
B cells produce antibodies that can neutralize pathogens in the blood.
Correct Answer: B
Choice B. Memory cells enabling faster response explains long-term protection.