What is the type of cell that can form APC?

• Macrophage

• macrophage

Name the the cell that can be activated by APC?

• Helper T cell

• Inactive helper T cell

• helper T cell

• inactive helper T cell

Name the substance that is secreted by APC to activate helper T cell?

• Interleukin-1

• interleukin-1

• IL-1

Activated helper T cell secrete a substance to activate B cell and cytotoxic T cell. Name the substance.

• Interleukin-2

• interleukin-2

• IL-2

Which lymphocyte produce antibodies?

• B cell

Which cell can secrete antibodies?

• Plasma cell

• plasma cells

• plasma cell

• Plasma cells

Antibodies block virus from binding to the cell is under which type of antigen-antibody interaction?

• Neutralization

• neutralization

• Neutralisation

• neutralisation

What is the type of antigen-antibody interaction that involves formation of pores on pathogen’s membrane?

• Activation of complement system

• activation of complement system

What is the main antibody produce in primary response?

• IgM

What is the main antibody produce upon re-exposure to the same pathogen?

• IgG

Name the antigen-antibody interaction which antibody mark the pathogen and attract macrophage to phagocyte it?

• Opsonization

• opsonization

Infected cell present the antigen fragment on its surface membrane to be recognized by what cell?

• Activated cytotoxic T cell

• activated cytotoxic T cell

Binding of activated cytotoxic T cell to infected cell occurs stimulate cytotoxic T cell to secrete?

• Perforin and granzyme

• perforin and granzyme

• Perforin & granzyme

• perforin & granzyme

Which substance can form pores on the membrane of infected cell?

• Perforin

• perforin

Which substance is secreted into the infected cell to trigger “cell-death”?

• Granzyme

• granzyme

What is the process where the cell destroy its organelles which lead to cell-death?

• Apoptosis

• apoptosis

If helper T cell is damaged and cannot be activated, adaptive immune response cannot be activated.

Antibody-binding site is the antibody receptor of antibody.

Antigenic determinant or epitope or antibody receptor of antigen can be bound by specific antigen receptor of antibody.

Name the immune response that protect the body against intracellular pathogen.

• Cell-mediated immune response

• cell-mediated immune response