Antibody Insights Quiz

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Test your antibody knowledge fast and accurately.

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Quader Ahmed Jalili

India

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Antibody Insights Quiz


Froggy Jumps Antibody Insights QuizOnline version Test your antibody knowledge fast and accurately. by Quader Ahmed Jalili 1 What shape is a typical antibody molecule? a Y-shaped b Spherical c Rod-shaped 2 How many chains does a standard antibody have? a Four b Two c Six 3 Which chains are identical light chains in an antibody? a Two light (L) chains b Three heavy (H) chains c Two heavy (H) chains 4 What are the two ends of an antibody called? a Amino (NH3) and carboxyl (COOH) ends b Hydrophobic and hydrophilic ends c Nucleic and phosphate ends 5 How many heavy chain classes exist in humans? a Five b Three c Four 6 Which heavy chain classes exist in antibodies? a beta, gamma only b kappa, lambda only c gamma (G), alpha (A), mu (M), delta (D), epsilon (E) 7 What are the two light-chain types called? a Sigma and Theta b Kappa and Lambda c Alpha and Beta 8 Which region binds antigens? a Constant region b Variable region c Hinge region 9 What is the paratope? a The Fc receptor b The hinge segment c The antigen-binding site 10 What is the Fab region responsible for? a Antigen binding b Placental transfer c Complement activation 11 Which region mediates effector functions like complement activation? a Fab region b Fc region c Hypervariable region 12 What is the function of the hinge region? a Anchors antibody to cell membrane b Provides flexibility to reach antigen c Inhibits binding to antigen 13 Which antibody class can cross the placenta? a IgM b IgG c IgA 14 Which IgG subclass has the poorest placental transfer? a IgG3 b IgG2 c IgG1 15 Which IgG subclass is best at fixing complement? a IgG4 b IgG3 c IgG2 16 Which antibody is best suited for mucosal immunity? a IgG b IgA c IgE 17 Which antibody exists as a pentamer in secretions? a IgM b IgD c IgA 18 What is secretory IgA composed of? a Trimeric IgA without J chain b Dimeric IgA with J chain c Monomeric IgA only 19 What is the main function of secretory IgA? a Local mucosal immunity b Systemic enzyme transport c Nuclear signaling 20 Which immunoglobulin is found on B cell surfaces as a receptor? a IgM (and IgD) b IgA only c IgG only 21 Which region of an antibody determines its class/isotype? a Variable region b Hinge region c Constant region of the heavy chain 22 What is used to produce monoclonal antibodies in labs? a CRISPR editing b Phage display c Hybridoma technique 23 What is a key feature of monoclonal antibodies? a Diverse specificity b Derived from a single B cell clone c Multiple epitopes 24 What medium is used to select hybridomas? a LB agar b HAT medium c MRS broth 25 Which antibody class is the major circulating antibody? a IgA b IgG c IgM 26 Which IgG subclass has the longest hinge region? a IgG1 b IgG2 c IgG3 27 Which antibody is primarily intravascular? a IgA b IgM c IgG 28 Which antibody is abundant in milk and tears? a IgE b IgA c IgM 29 Which type of light chain is more common in humans? a Delta b Kappa c Lambda 30 What term describes the antigenic determinants on an Ig molecule? a Isotypes, idiotypes, and allotypes b Epitope and paratope only c Antigenic drift and shift 31 What term describes the unique antigen-binding sites on an Ig? a Paratope b Hinge c Epitope 32 Which structure supports antibody diversity in variable regions? a Hinge regions b Fc regions c Hypervariable (CDR) regions 33 Which term refers to identical antibodies from one clone? a Antitoxins b Polyclonal antibodies c Monoclonal antibodies 34 Which condition produces Bence Jones proteins? a Scurvy b Multiple myeloma c Rheumatoid arthritis 35 What are monoclonal antibodies often used for diagnostically? a Antigen synthesis b Cell adhesion c Antigen detection 36 Which molecule can transfer IgG across the placenta? a Fc receptor on placenta b Fab fragment alone c Secretory component 37 What is the primary function of IgE? a Type I hypersensitivity mediator b Opsonization c Complement fixation predominant 38 IgD primarily acts as what on B cells? a B cell receptor b Complement activator c Secretory antibody 39 Which region interacts with Fc receptors on effector cells? a Fc region b Fab region c Paratope 40 Which antibody predominates in serum as IgA1 and IgA2? a IgE b IgA c IgD 41 What determines the allotype of an antibody? a Variable region determinants b J chain variations c Constant region determinants 42 What is the main role of IgM in infection? a Mucosal immunity only b Chronic infection only c Acute infection and complement fixation 43 Which are the two forms of IgA in the body? a Pentameric and hexameric b Trimeric and tetrameric c Monomeric and dimeric 44 Which Ig class has the shortest half-life? a IgE b IgG c IgA 45 Which process describes acquiring antibodies from another source post-exposure? a Vaccine immunity b Passive immunity c Active immunity

Antibody Insights Quiz

Froggy Jumps

About this activity

Created by

Download the paper version to play

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Antibody Insights QuizOnline version

by Quader Ahmed Jalili

What shape is a typical antibody molecule?

How many chains does a standard antibody have?

Which chains are identical light chains in an antibody?

What are the two ends of an antibody called?

How many heavy chain classes exist in humans?

Which heavy chain classes exist in antibodies?

What are the two light-chain types called?

Which region binds antigens?

What is the paratope?

What is the Fab region responsible for?

Which region mediates effector functions like complement activation?

What is the function of the hinge region?

Which antibody class can cross the placenta?

Which IgG subclass has the poorest placental transfer?

Which IgG subclass is best at fixing complement?

Which antibody is best suited for mucosal immunity?

Which antibody exists as a pentamer in secretions?

What is secretory IgA composed of?

What is the main function of secretory IgA?

Which immunoglobulin is found on B cell surfaces as a receptor?

Which region of an antibody determines its class/isotype?

What is used to produce monoclonal antibodies in labs?

What is a key feature of monoclonal antibodies?

What medium is used to select hybridomas?

Which antibody class is the major circulating antibody?

Which IgG subclass has the longest hinge region?

Which antibody is primarily intravascular?

Which antibody is abundant in milk and tears?

Which type of light chain is more common in humans?

What term describes the antigenic determinants on an Ig molecule?

What term describes the unique antigen-binding sites on an Ig?

Which structure supports antibody diversity in variable regions?

Which term refers to identical antibodies from one clone?

Which condition produces Bence Jones proteins?

What are monoclonal antibodies often used for diagnostically?

Which molecule can transfer IgG across the placenta?

What is the primary function of IgE?

IgD primarily acts as what on B cells?

Which region interacts with Fc receptors on effector cells?

Which antibody predominates in serum as IgA1 and IgA2?

What determines the allotype of an antibody?

What is the main role of IgM in infection?

Which are the two forms of IgA in the body?

Which Ig class has the shortest half-life?

Which process describes acquiring antibodies from another source post-exposure?