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Antibodies and Immune Response Quiz

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Questions and Answers

What is the role of T cells in humoral immunity?

Ingest and disable bacteria

Recognize antigen on B cells (correct)

Secrete antibodies

Activate mast cells

Which cells present antigens to ingest and disable bacteria?

Mast cells

B lymphocytes

Plasma cells

Phagocytes (correct)

What is the main function of B lymphocytes in humoral immunity?

Activate mast cells

Ingest and disable bacteria

Secrete antibodies (correct)

Activate complement proteins

What is the significance of coordinating the innate and specific immune system in response to extracellular bacteria?

To eliminate bacteria Signup and view all the answers

What is the main function of plasma cells?

Secrete antibodies Signup and view all the answers

Which class of antibody is good at causing antigen clumping and activating complement?

IgE Signup and view all the answers

What is the role of IgD antibodies?

None of the above Signup and view all the answers

In the activation of B cells in response to an antigen, what is the correct order of the steps?

4, 5, 3, 2, 1 Signup and view all the answers

What is the function of toll-like receptors?

To defend against extracellular bacteria Signup and view all the answers

What is opsonization?

Coating substance with an opsonin Signup and view all the answers

What would be impaired in individuals with mutations in toll-like receptors?

The ability to defend against extracellular bacteria Signup and view all the answers

What happens when MHC class I expression is reduced on a cell?

The cell becomes susceptible to killing by NK cells Signup and view all the answers