Antigen Essentials Quiz

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Test your knowledge on antigens and immunology basics.

Créé par

Quader Ahmed Jalili

India

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Antigen Essentials Quiz


Froggy Jumps Antigen Essentials QuizVersion en ligne Test your knowledge on antigens and immunology basics. par Quader Ahmed Jalili 1 What property defines an immunogen as opposed to just antigenicity? a Ability to induce an immune response b Smallest unit of antigenicity c Ability to bind antibodies 2 What is the smallest unit of antigenicity called? a Paratope b Immunogen c Epitope 3 Haptens alone are antigenic but not immunogenic. What makes them immunogenic? a MHC molecule b Adjuvant c Carrier protein 4 Which class of antigens requires T cell help to induce antibody production? a T cell dependent (TD) antigens b Superantigens c T cell independent (TI) antigens 5 What type of antigens can activate B cells polyclonally without T cells? a TD antigens b Superantigens c T cell independent (TI) antigens 6 Which is an example of a heterophile antigen test? a Weil-Felix reaction b Cold agglutination test c Paul-Bunnell test 7 Heterophile antigens can cross-react between species. This is useful in? a Allergen testing b Serological diagnostic tests c Vaccination 8 Which structural feature is necessary for a hapten to become immunogenic? a Binding to MHC b Direct T cell activation c Conjugation to a carrier protein 9 What determines immunogenicity more than other factors? a Carbohydrate content b Molecular weight only c Foreignness to the host 10 Which type of antigen is often the most immunogenic based on size? a Nucleic acids b Lipids c Proteins 11 What happens when tissue enzymes degrade an antigen? a Antigen is inactivated b More immunogenic fragments are produced c Immune tolerance is induced 12 What is the role of adjuvants in vaccines? a Enhance immunogenicity of antigens b Neutralize toxins c Reduce dosage 13 Which is a common adjuvant used in vaccines? a Alum (aluminium hydroxide/phosphate) b Lipopolysaccharide c Cholera toxin 14 Which mechanism describes adjuvant action? a Delaying antigen release b Directly stimulating B cells only c Destroying antigen 15 What is an epitope able to do? a Sensitize T and B cells b Bind MHC only c Be a full protein 16 Haptens become immunogenic when attached to what? a MHC molecule b Carrier protein c Antibody 17 What are autoantigens? a Toxic proteins b Foreign bacterial proteins c Self antigens that may be non-immunogenic 18 What can make self-antigens immunogenic at times? a Biological alteration (e.g., cancer) b Vitamin binding c High molecular weight 19 Which group includes allo-, iso-, and heteroantigens? a Self antigens b Autoantigens c Non-self or foreign antigens 20 Which type of antigen is most associated with bacteria like capsules and LPS? a Heterophile antigens b TD antigens c TI antigens 21 Which class of antigens can bridge MHC-II and T cells directly (superantigens)? a TI antigens b Superantigens c TD antigens 22 Which term describes the antibody-binding site on an antigen? a Paratope b Antigenicity c Epitope 23 Which is NOT an example of an adjuvant mechanism? a Directly destroying antigens b Activating phagocytosis c Delaying release 24 Which test is used as a heterophile agglutination test? a Cold agglutination test b Weil-Felix reaction c Paul-Bunnell test 25 What determines the Ig response to a memory cell in secondary exposure? a Absence of adjuvant b Repeated doses over time c One-time high dose 26 Which is true about TI antigens? a They are always protein b They require APCs c They can activate B cells without T cells 27 Which term describes the site of antibody-antigen binding? a Paratope b Epitope c Immunogen

Antigen Essentials Quiz

Froggy Jumps

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Créé par

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Antigen Essentials QuizVersion en ligne

par Quader Ahmed Jalili

What property defines an immunogen as opposed to just antigenicity?

What is the smallest unit of antigenicity called?

Haptens alone are antigenic but not immunogenic. What makes them immunogenic?

Which class of antigens requires T cell help to induce antibody production?

What type of antigens can activate B cells polyclonally without T cells?

Which is an example of a heterophile antigen test?

Heterophile antigens can cross-react between species. This is useful in?

Which structural feature is necessary for a hapten to become immunogenic?

What determines immunogenicity more than other factors?

Which type of antigen is often the most immunogenic based on size?

What happens when tissue enzymes degrade an antigen?

What is the role of adjuvants in vaccines?

Which is a common adjuvant used in vaccines?

Which mechanism describes adjuvant action?

What is an epitope able to do?

Haptens become immunogenic when attached to what?

What are autoantigens?

What can make self-antigens immunogenic at times?

Which group includes allo-, iso-, and heteroantigens?

Which type of antigen is most associated with bacteria like capsules and LPS?

Which class of antigens can bridge MHC-II and T cells directly (superantigens)?

Which term describes the antibody-binding site on an antigen?

Which is NOT an example of an adjuvant mechanism?

Which test is used as a heterophile agglutination test?

What determines the Ig response to a memory cell in secondary exposure?

Which is true about TI antigens?

Which term describes the site of antibody-antigen binding?