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Homework answers / question archive / University of Texas, Rio Grande Valley - MICRO 2429 EXAM 3 1)Phagocytes were first reported in which organism and by who?     Which leukocytes contain histamine and which is not part of the innate immune system?       The skin and mucous membranes are mostly involved in what type of immunity?     Describe innate and adaptive immunity?       Which cells are primarily involved in all the immune response?     What antimicrobial substances compliment the physical barriers of innate immunity and how?   What is the hematopoietic (pluripotent) stem cell and where is it found?     What are the protective outcomes of phagocytosis?     Describe how the skin and the mucous membranes function as first-line defenses

University of Texas, Rio Grande Valley - MICRO 2429 EXAM 3 1)Phagocytes were first reported in which organism and by who?     Which leukocytes contain histamine and which is not part of the innate immune system?       The skin and mucous membranes are mostly involved in what type of immunity?     Describe innate and adaptive immunity?       Which cells are primarily involved in all the immune response?     What antimicrobial substances compliment the physical barriers of innate immunity and how?   What is the hematopoietic (pluripotent) stem cell and where is it found?     What are the protective outcomes of phagocytosis?     Describe how the skin and the mucous membranes function as first-line defenses

Health Science

University of Texas, Rio Grande Valley - MICRO 2429

EXAM 3

1)Phagocytes were first reported in which organism and by who?

 

 

  1. Which leukocytes contain histamine and which is not part of the innate immune system?

 

 

 

  1. The skin and mucous membranes are mostly involved in what type of immunity?

 

 

  1. Describe innate and adaptive immunity?

 

 

 

  1. Which cells are primarily involved in all the immune response?

 

 

  1. What antimicrobial substances compliment the physical barriers of innate immunity and how?

 

  1. What is the hematopoietic (pluripotent) stem cell and where is it found?

 

 

  1. What are the protective outcomes of phagocytosis?

 

 

  1. Describe how the skin and the mucous membranes function as first-line defenses.

 

 

  1. Which phagocytic cells are found in the tissues?

 

 

  1. How are surface receptors different from cytokines?

 

 

  1. What is the role of the normal microbiota (flora) in the adaptive immune system?

 

 

  1. How do cells communicate with each other so as to mount a coordinated response to microbial invasion?

 

 

15. List the main as well as subtypes of cytokines and their function in the body?

 

  1. Generally, what are Pattern Recognition Receptors (PRR) and what do they detect?

 

 

  1. Name the three types of PRR, their location and specific functions.

 

 

  1. Identify and elaborate on the three major protective outcomes of compliment activation.

 

 

 

 

  1. Describe the complement system and the pathways involved in its activation?

 

 

 

  1. How are membrane attack complexes different from granulomas?

 

 

 

  1. Which complement proteins are involved in inflammation and enhancement of phagocytosis?

 

 

  1. Which complement protein is involved in opsonization?

 

 

  1. Which group of organisms are more susceptible to complement lysis and why?

 

 

  1. What are the five cardinal signs of inflammation?

 

 

  1. What is the first host response to a nonspecific tissue injury?

 

 

 

  1. During chemotaxis which Leukocytes arrive first at the area of inflammation and how?

 

 

 

 

  1. Digestion of infectious agent involves which cellular structure?

 

 

  1. Describe the exocytosis process of the sentinel and neutrophil cells?

 

 

  1. What happens when Rig-like receptors in a cell detect viral genetic material?

 

 

 

  1. What receptors are used to slow down circulating Neutrophils?

 

 

Match cell with function:

  1. Polymorphonuclear_________

 

  1. Eosinophils_______
  2. Basophils_____________

 

  1. 34.lymphocytosis___________
  1. White blood cells called granulocytes are important in the innate immunity.

 

 

  1. Mast cells are only found in the blood.

 

  1. Lymphocytes are not involved in the adaptive immune response

 

 

  1. Lymphoid progenitor cells only differentiate to form T cells and B cell.

 

 

  1. All pathways of complement activation follow the same sequence of events after C3.

 

 

  1. Gram-negative bacteria are less susceptible to complement lysis than Gram-positive bacteria.

 

 

  1. Interferons are cytokines that are involved in destruction of viruses.

 

 

  1. Fever often enhances bacterial survival during an infection.

 

 

  1. What is an opsonin and give an example?

 

 

 

  1. What is fever and what induces it as well as the types of inducer?

 

 

  1. What is the difference between pyroptosis and apoptosis and what cells are involved in each process?

 

 

 

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