Quiz on Pathogen Response

Which of the following is a physical change that occurs in cells and tissues in the presence of a pathogen?

• Release of cytokines

• Blood vessels dilate

• Release of histamine

• Production of pyrogens

What characterizes inflammation in the presence of a pathogen?

• Fever and increase in body temperature

• Release of cytokines

• Heat and redness

• Formation of granuloma

Which of the following is a chemical change that occurs in cells and tissues in the presence of a pathogen?

• More macrophages enter the tissue

• Blood clotting seals the infection area

• Injured mast cells release histamine

• Formation of granuloma

What is the role of cytokines in the presence of a pathogen?

• They cause blood vessels to dilate

• They are signaling molecules that help cell-to-cell communication in infection

• They increase the permeability of blood vessels

• They cause fever and increase in body temperature

What is the effect of pyrogens on the body?

• They cause blood vessels to dilate

• They increase the permeability of blood vessels

• They affect the hypothalamus and alter body temperature

• They cause the formation of granuloma

Which of the following is a general term used for all signaling molecules?

• Chemokines

• Cytokines

• Interferons

• Complement proteins

What is the function of chemokines?

• Promote the development of T and B lymphocytes

• Attract cells to sites of infection/inflammation

• Assist in defense mechanisms that destroy extracellular pathogens

• Stimulate phagocytes to be more active

Cell death is known as

• granuloma

• apoptosis

• Interferon

• desiccation

Which of the following promotes the development and differentiation of T and B lymphocytes and increases antibody production?

• Complement system

• Interferons

• Cytokine (interleukin)

• Chemokines

What is the role of complement proteins?

• Promote the development of T and B lymphocytes

• Stimulate phagocytes to be more active

• Destroy RNA and reduce protein synthesis

• Increase urination