Medical Quiz

Adaptive Immune System Quiz


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Which of the following statements is true?

A. Plasma cells produce antibodies that can exist in the blood system for between 10 and 20 years

B. Memory cells last a long period of time, plasma cells a significantly shorter period

C. Memory cells need to be replaced every 6 months via immune system stimulation

D. Mutatnt Cytotoxic T Cells are responsible for the formation of cancers


The bonds that hold together antibodies are:

A. Polypeptide Bonds

B. Hydrogen Bonds

C. Phosphodiester Bonds

D. Disulphide Bonds


Which of the following is NOT a function of an antibody?

A. Attach to pathogens and attract immune cells such as phogocytes

B. Attach to pathogens and reduce their mobility

C. Attach to pathogens and prevent them from attaching to body cells

D. Attach to pathogens and destroy them directly via apoptosis


Humoral Immunity involves mainly:

A. T Cells

B. Phagocytes

C. B Cells

D. Fever and Inflammation


Which of the of the following molecules are not part of the adaptive immune system?

A. Mast Cells

B. Plasma Cells

C. T Helper Cells

D. Cytotoxic T Cells


Cell Mediated Immunity is better suited to dealing with:

A. Intracellular infections

B. extracellular infections


An antibody is:

A. A tertiary structure with 4 proteins, including a constant and variable region

B. A quaternary structure with 2 proteins, including a constant and variable region

C. A quaternary structure with 4 proteins, including 2 heavy chains and 2 light chains

D. A tertiary structure with 4 proteins, including 2 heavy chains and 2 light chains


The variable region within an antibody is:

A. Different with each arm able to bind to a different antigen

B. The same on both arms

C. Mostly made up of nucleic acids

D. Is tolerant to a wide range of temperatures


What is a naive B or T Cell?

A. A cell that has been selected and has undergone clonal selection

B. A cell that is yet to encounter its complementary antigen

C. Another name for a B or T memory cell

D. A cell that doesn’t have the receptors needed to fit any antigens


Once an antigen presenting macrophage has engulfed a pathogen and is displaying its antigens, where does it migrate to?

A. The site of infection

B. The Blood Stream

C. Towards antibodies

D. To the Lymph Nodes


Which of the 3 phagocytes is not a professional antigen presenter?

A. Macrophages

B. Neutrophils

C. Dendritic Cels


Once a B cell has been selected via a T Helper cell, it undergoes clonal expansion and differentiation. This means:

A. All B cells that don’t fit the appropriate antigen are destroyed by NK Cells

B. The B Cell is activated and awaits a subsequent encounter with the pathogen before it replicates

C. B cells replicate and produce large numbers of memory cells as well as some plasma cells

D. B cells replicate and produce large numbers of plasma cells as well as some memory cells


What is the role of a T Helper Cell?

A. To recognise a particular antigen and attack it

B. To recognise a particular antigen and release cytokines

C. To recognise a particular antigen and create antibodies against it

D. To create Cytotoxic T Cells rapidly




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