Defenses against Diseases

When viruses infect body cells, certain host cells produce proteins that inhibit synthesis of viral proteins and help block viral replication. this protein is called

• histamine

• lysozyme

• interferons

• amylase

The main role of antibodies is

• increase the production of viral proteins

• destroy pathogens

• tag antigens for destruction by immune cells.

• inhabit the production of viral proteins

……………..increase the flow of blood and fluids to the affected area and enlarge blood capillaries

• histamine

• lysozyme

• phagocyte

• B cells

The body makes up to 10 billion different antibodies.

• true

• false

The shape of each type of antibody allows it to attach to many types of antigens.

• true

• false

The inflammatory response causes infected areas to become

• dry and cold

• painful, cold and red

• red, warm but with no sense of pain

• red, warm and painful, or inflamed.

The main working cells of the immune response

• B cells

• antibodies

• T cells

• B & T cells

are lymphocytes the produced and matured in the bone marrow

• B cells

• T cells

are lymphocytes the produced in the bone marrow but matured in the thymus

• B cells

• T cells

Which one of the following is not involved in the specific immune response

• B cells

• antibodies

• T cells

• fever