Antibody Function

The video provides an overview of antibodies, their structure, and their role in the immune system. It explains how antibodies bind to antigens, triggering immune responses, and discusses the differences between IgM and IgG antibodies. The video also covers the specificity of antibody-antigen interactions and the importance of non-covalent bonds in these processes.

What is the primary role of antibodies in the immune system?

• To destroy red blood cells

• To bind and neutralize foreign proteins

• To produce antigens

• To synthesize carbohydrates

Which part of the antibody is responsible for binding to antigens?

• Fc region

• Carbohydrate region

• Fab region

• Constant region

What is the role of carbohydrates in the Fc region of antibodies?

• To bind antigens

• To activate the complement system

• To synthesize proteins

• To destroy pathogens

What is an epitope?

• A fragment of an antigen that binds to an antibody

• A type of immune cell

• A type of antibody

• A carbohydrate residue

What is the significance of the variable region in antibodies?

• It determines the antibody's constant region

• It is responsible for the antibody's specificity to antigens

• It binds to the Fc region

• It activates the complement system

Which of the following is true about antibody specificity?

• Antibodies can bind to any antigen

• Each antibody is specific to one particular antigen

• Antibodies are not specific to antigens

• Antibodies bind to multiple antigens simultaneously

Which type of antibody is part of the primary immune response?

• IgM

• IgE

• IgA

• IgG

How do IgG antibodies differ from IgM antibodies?

• IgG antibodies are part of the primary immune response

• IgG antibodies are less specific than IgM antibodies

• IgG antibodies cannot activate the complement system

• IgG antibodies bind more strongly and are part of the secondary immune response

What type of interactions are involved in antibody-antigen binding?

• Ionic bonds

• Covalent bonds

• Non-covalent interactions

• Metallic bonds

Which amino acid interaction is NOT involved in antibody-antigen binding?

• Coulombic interactions

• Van der Waals interactions

• Hydrogen bonding

• Peptide bonding