2. Cells of the Immune System (All slides)-65-74

What is the function of agglutination by antibodies?

• To tag the pathogens by binding to its antigens so that phagocytes can destroy them

• To activate a cascade of functions brought about by a collection of small proteins known as the ‘complement proteins’

• To bind with multiple pathogens and form clumps that precipitate

• To bind with antigens to prevent the pathogen from interacting with the host cells

What is the function of opsonization by antibodies?

• To bind with antigens to prevent the pathogen from interacting with the host cells

• To tag the pathogens by binding to its antigens so that phagocytes can destroy them

• To bind with multiple pathogens and form clumps that precipitate

• To activate a cascade of functions brought about by a collection of small proteins known as the ‘complement proteins’

What is the function of antibody-dependent cell-mediated cytotoxicity (ADCC)?

• To bind with antigens to prevent the pathogen from interacting with the host cells

• To tag the pathogens by binding to its antigens so that phagocytes can destroy them

• To bind to infected target cells and mark them for destruction by nonspecific cells

• To activate a cascade of functions brought about by a collection of small proteins known as the ‘complement proteins’

What is the function of memory cells in the immune system?

• To produce antibodies faster upon second exposure to the antigen

• To activate a cascade of functions brought about by a collection of small proteins known as the ‘complement proteins’

• To tag the pathogens by binding to its antigens so that phagocytes can destroy them

• To bind with multiple pathogens and form clumps that precipitate

What is the role of memory cells during vaccination?

• To produce antibodies faster upon second exposure to the antigen

• To bind with antigens to prevent the pathogen from interacting with the host cells

• To bind with multiple pathogens and form clumps that precipitate

• To tag the pathogens by binding to its antigens so that phagocytes can destroy them

What type of antigens can B-cells recognize?

• Only native forms in their tertiary structure

• Only linear epitopes presented by APCs

• Only linear peptides presented by APCs

• Both linear epitopes and native forms

What type of antigens can T-cells recognize?

• Both linear epitopes and native forms

• Only linear peptides presented by APCs

• Only linear epitopes presented by APCs

• Only native forms in their tertiary structure

What is the function of neutralization by antibodies?

• To activate a cascade of functions brought about by a collection of small proteins known as the ‘complement proteins’

• To bind with antigens to prevent the pathogen from interacting with the host cells

• To tag the pathogens by binding to its antigens so that phagocytes can destroy them

• To bind with multiple pathogens and form clumps that precipitate

What is the function of the complement system activation by antibodies?

• To bind with antigens to prevent the pathogen from interacting with the host cells

• To tag the pathogens by binding to its antigens so that phagocytes can destroy them

• To bind with multiple pathogens and form clumps that precipitate

• To activate a cascade of functions brought about by a collection of small proteins known as the ‘complement proteins’

What happens when memory cells are produced in response to specific antigens?

• They activate a cascade of functions brought about by a collection of small proteins known as the ‘complement proteins’

• They produce antibodies faster upon second exposure to the antigen

• They activate promptly upon second exposure to the antigen

• They stay alive for a long period of time