Adaptative immune system

Which of the following is a function of Cytotoxic T cell?

• To target virus infected cells

• To target extracellular pathogens

• To provide a physical barrier of protection against pathogens

• To phagocytose pathogens

What is NOT a function of a T helper cell

• Producing Antibodies

• Stimulating B cells

• Antigen Presentation

• Forming effector helper T cells

Complete the sentence

B cells respond to pathogens that are........

• Intracellular

• Extracellular

• are in infected cells

• cell-meditated

A new pathogen called H.typo is causes breathing problems in teenagers aged 14-18, some researchers have tested the blood of infected teenagers and have found high T cell count. Which of the following provides the best reason for high T cell count?

• Inflammation in the body is causing an increase in T cells being produced

• The second line of the immune system has been activated and is producing large amounts of T cells

• Th third line of the body is producing immune cells that can specifically target the H.typo pathogen

• The bone marrow is producing mature T cells to combat the new pathogen

During antigen presentation, T helper cells specifically bind to

• MHC-I marker

• MHC-III markers

• Self-antigen

• MHC-II markers

Which of the following only lists components of antibody structure

• light chain, heavy chain, medium chain, small chain

• light chain, heavy chain, antigen binding site

• antigen binding site, medium chain, small chain

• heavy chain, hinge region, small chain

Which of the following lists 2 functions of antibodies

• Agglutination, Homeostasis

• Complement activation, prevention

• Opsonization,

  neutralization

• precipitation, apoptosis

Which of the following is NOT a function of a T helper cell

• activates cytotoxic t cell

• kills pathogens directly

• activation o f macrophages

• activation of b cells into plasma cells

Which of the following is part of the primary lymphatic system

• Bone marrow

• Lymph nodes

• Spleen

• liver

Where do t cells mature

• bone marrow

• thymus

• lymph nodes

• spleen