The secondary immune response is characterized by:
A delayed and weaker response compared to the primary immune response.
The activation of naive B cells and T cells.
A rapid and robust response due to the presence of memory cells.
The production of IgM antibodies.
The Correct Answer is C
Explanation: The secondary immune response is faster and more potent than the primary immune response due to the presence of memory B cells and memory T cells. These memory cells "remember" the specific antigen from a previous encounter, allowing for a quicker and more effective immune response upon re-exposure to the same antigen.
Incorrect choices:
a. The secondary immune response is faster and stronger compared to the primary immune response, not delayed and weaker.
b. The secondary immune response involves the activation of memory B cells and memory T cells, not naive B cells and T cells.
d. The primary immune response is characterized by the production of IgM antibodies initially, but during the secondary immune response, the production of IgG antibodies predominates, which are more effective in neutralizing antigens.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Explanation: Passive immunity is the temporary immunity that is acquired from an external source, such as the transfer of antibodies from a mother to her baby through the placenta during pregnancy or through breastfeeding. This type of immunity provides immediate protection but does not result in the production of memory cells.
Incorrect choices:
a. The body's response to a vaccine is an example of active immunity, where the body produces its own antibodies in response to exposure to a weakened or inactive form of a pathogen.
c. The activation of T cells in response to an infection is part of the body's adaptive immune response, contributing to active immunity.
d. The production of memory cells after exposure to a pathogen is also a characteristic of active immunity, as it allows the body to recognize and respond more quickly to future infections with the same pathogen.
Correct Answer is C
Explanation
Explanation: Celiac disease is an autoimmune disorder in which the immune system attacks and damages the lining of the small intestine in response to the ingestion of gluten, a protein found in wheat, barley, and rye.
Incorrect choices:
a. Rheumatoid arthritis primarily affects the joints, not the small intestine.
b. Sjögren's syndrome primarily affects the salivary and lacrimal glands, not the small intestine.
d. Type 1 diabetes mellitus is an autoimmune disorder in which the immune system attacks and destroys insulin-producing beta cells in the pancreas, not the small intestine.
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