Question

The ____ response, also called the anamnestic response, is the specific immune response generated upon subsequent exposure to a previously seen antigen, and it is directed by memory cells.

A) Primary
B) Secondary
C) Tertiary
D) Quaternary

Answer 1

B) Secondary

The secondary response, also known as the anamnestic response, is the specific immune response that occurs upon subsequent exposure to a previously seen antigen. This response is stronger and faster than the primary response, and it is directed by memory cells.

Step-by-step explanation:

The secondary response, also called the anamnestic response, is the specific immune response generated upon subsequent exposure to a previously seen antigen, and it is directed by memory cells. This response is stronger and faster than the primary response. It often eliminates a pathogen before it can cause significant tissue damage or any symptoms. It is the basis of immunological memory, which protects us from getting diseases repeatedly from the same pathogen.

Example: When a person gets infected with a virus for the first time, their immune system mounts a primary response. If they are exposed to the same virus again, the immune system produces a secondary response, which is quicker and more effective at eliminating the virus.