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Innate Chemical Defenses in Animals Quiz

12 Questions

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Innate Chemical Defenses in Animals Quiz

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Questions and Answers

Which proteins can lyse bacterial cell walls?

Lysozyme

Defensins (correct)

Haptoglobin

Hepcidin

What is the primary role of the complement system?

To bind C3 and C4 covalently to microbial surfaces (correct)

To prevent bacterial growth by depriving them of essential iron

To activate an enzyme pathway triggered by adaptive immune responses

To kill invading microbes collectively

Which pathway of complement activation is triggered by bacterial surfaces that bind C3?

Adaptive immune response pathway

Second complement-activating pathway

Alternative pathway (correct)

Classic pathway

What triggers the classic pathway of complement activation?

Antibodies binding to microbial surfaces Signup and view all the answers

What is the primary function of the antimicrobial peptides in tissues?

Preventing bacterial growth by multiple mechanisms Signup and view all the answers

Which proteins prevent bacterial growth by depriving them of essential iron?

Hepcidin Signup and view all the answers

What is the role of the complement system in killing invading microbes?

Binding C3 and C4 covalently to microbial surfaces Signup and view all the answers

Which pathway of complement activation is triggered by bacterial surfaces binding to mannose-binding protein in serum?

Classic pathway Signup and view all the answers

Which type of proteins can prevent bacterial growth by depriving them of essential iron?

Hepcidin Signup and view all the answers

What is the primary function of the complement system in animals?

To bind C3 and C4 covalently to microbial surfaces Signup and view all the answers

What triggers the alternative pathway of complement activation?

Bacterial surfaces binding to C3 Signup and view all the answers

Which group of proteins act collectively to kill invading microbes in the complement system?

The ~30 proteins of the complement system Signup and view all the answers