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Immunology: Aging and the Immune System

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Questions and Answers

What is the primary function of antibody-secreting plasma cells in naturally acquired active immunity?

To produce memory cells and cytotoxic T cells

To stimulate cell-mediated immune responses

To recognize antigens and activate B cells

To secrete antibodies to combat pathogens (correct)

What is the main difference between naturally acquired active immunity and artificially acquired active immunity?

The type of antigens involved

The duration of immunity

The route of antigen introduction (correct)

The type of immune response triggered

What is the primary function of B memory cells in adaptive immunity?

To produce antibodies to combat pathogens

To recognize antigens and activate T cells

To stimulate cell-mediated immune responses

To provide long-term immunity to specific pathogens (correct)

What is the primary function of cytotoxic T cells in adaptive immunity?

To directly kill infected host cells (A) Signup and view all the answers

What is the primary difference between antibody-mediated immunity and cell-mediated immunity?

The type of immune response triggered (C) Signup and view all the answers

What is the primary function of the immune system in aging?

To maintain immune homeostasis and prevent disease (A) Signup and view all the answers

What is the primary mechanism of artificially acquired passive immunity?

Transfer of immunoglobulins from one individual to another (D) Signup and view all the answers

What is the primary function of T memory cells in adaptive immunity?

To provide long-term immunity to specific pathogens (C) Signup and view all the answers

What is the primary difference between IgG and IgA antibodies in naturally acquired passive immunity?

The site of antibody transfer (A) Signup and view all the answers

What is the primary consequence of immune system aging?

Increased susceptibility to infections (C) Signup and view all the answers