Immune System Quiz

Which of the following is a physical barrier in the first line of defense?

• Defensins

• Dermcidin

• Skin

• Lysozyme

What is the role of defensins in the first line of defense?

• Secrete sweat and skin secretions

• Disrupt microbial membranes and metabolism

• Secrete mucus membranes

• Steal iron from microbes

Which cells are involved in the innate immune system?

• B cells and T cells

• Neutrophils, Eosinophils, Macrophages, and Dendritic Cells

• Plasma cells

• Cytotoxic T cells

What is the function of interferons in the second line of defense?

• Promote inflammation

• Create a localized anti-viral state

• Initiate the third line of defense

• Increase blood flow/temperature

Which of the following is part of the third line of defense?

• Physical barriers

• Chemical barriers

• Adaptive Immune System

• Inflammation

What is the role of Cytotoxic T cells in the adaptive immune system?

• Differentiate to plasma cells

• Kill cells infected with intracellular pathogens

• Secrete histamine

• Promote inflammation

Which of the following locations is NOT typically associated with normal microbiota?

• Conjunctiva

• Oral Cavity

• Brain and CNS

• Skin

Which type of bacteria is commonly found in the vagina and helps produce an acidic environment?

• Staphylococcal

• Propioibacteria

• Lactobacillus

• Coliform bacteria

What is the term for the relationship where one organism benefits and the other is unaffected?

• Mutualism

• Commensalism

• Parasitism

• Symbiosis

Which of the following is a bacterial antigen?

• Antibodies

• Bacteriocins

• Peptidoglycan

• Plasma cells