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Immunology Quiz on Opsonins and Toll Receptors

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Immunology Quiz on Opsonins and Toll Receptors

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Questions and Answers

Which of the following molecules acts as an opsonin?

C3a

Mannose binding lectin (correct)

C-reactive protein

Toll receptors

What is the primary function of Toll receptors?

Bind complement-opsonized ligands efficiently

Allow sentinel cells to recognize and respond to microbial components (correct)

Localized to endosomes

Phagocytic receptors with no signaling role

Where are the TLRs localized that recognize LPS, peptidoglycan, and flagella?

In the cytoplasm

On the plasma membrane

In endosomes (correct)

Secreted into the extracellular space

Which statement about Mannose binding lectin is true?

It fixes complement and aids in opsonization Signup and view all the answers

What is a key function of macrophages in the immune response?

Act as sentries to detect pathogens Signup and view all the answers

Which of the following is a characteristic of C3b?

It binds to mannose on cell surfaces Signup and view all the answers

Immunology Quiz on Opsonins and Toll Receptors

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Questions and Answers

Which of the following molecules acts as an opsonin?

What is the primary function of Toll receptors?

Where are the TLRs localized that recognize LPS, peptidoglycan, and flagella?

Which statement about Mannose binding lectin is true?

What is a key function of macrophages in the immune response?

Which of the following is a characteristic of C3b?

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