4. Acquired or adaptive immunity can be divided in to Natural Active, Natural Passive, Artificial Active, and Artificial Passive Immunity. Which types will lead to long lasting immune protection? Which will provide short term protection? Make sure to explain your answers.

Which of the following is not an action of complement? (a) enhances phagocytosis (b) enhances inflammatoryresponse (c) coats pathogens (d) lyses viruses (e) stimulatesproduction of memory T cells

4.Which of the following immune responses occurs when a cytotoxic T cell is activated? Note: This is a multiple question, choose the correct answer below: Cytotoxic T cells release histamine molecules that signal the blood vessels to dilate. Cytotoxic T cells release antibodies that neutralize antigens of pathogens. Cytotoxic T cells release proteins that trigger infected cells to undergo apoptosis and/or cytolysis.

1. What physical barrier and non-specific defenses help to prevent infection? How is a "non- specific" defense different from a "specific" defense? 2. Non-specific immunity is also called_immunity while specific immunity is called 3. Describe the roles of complement proteins, cilia (in lungs), natural killer cells and phagocytes. How are these non-specific defenses? 4. Describe the inflammatory response. Describe how this happens. 5. How is the immune system (and inflammation) related to allergies? 6. What is an antigen? How does your immune system recognize it? 7. What is an antibody? 8. Know the difference between B cells, killer T cells, and helper T cells. What do they do? Where are they produced, what type of immunity they provide, how do they kill foreign organisms. 9. Describe how the immune system responds to an infection..basically know how a B cell is activated and how it makes antibodies. 10. What is the difference between a primary and a secondary immune response? 11. What…