Describe the role of each of the following cells of the immune system, and indicate if they are part of the innate or acquired/adaptive immune response: A. plasma cells B. mast cells C. helper T cells D. monocytes

OneClass: Describe the role of each of the following cells of the immune system, and indicate if they...

1. during inflamation fluid will passively diffuse out of blod vessels into the nearby infected tissue. This implies all of the following EXCEPT

a.the osmolarity of the fluid surrounding infected tissues is higher than the plasma b the surrounding tissue will swell with excessive fluids c near by cappilaries have become more pearmeable d B-lymphocyte will differeniate to become plasma cell

2. which of the following best describe the qualities of most antigens?

a macromolecules that are foreign to the host b atomic elements that are not normally present in the human body c macromolecules tah tare produced by the host organism d atomic elements that are harmful or toxic

3. an adbantages to adaptive immunity is

a its memory cell that provide quicker larger and more efficient immune response upon second exposure to an antigen b its need for several cells to be activated over several days on first exposure c the ability for its individul cells to respond to many differnt pathogens d the use of antibodies that cause cells lysis and kill invading cells

4, an advantages of innate immunity is

a its a barrier taht prevent pathogens from entering into the body b the specifcity of its individual cell which specialize in the removal on one type of antigen c the numerous step in the activation of its cell that can prevent autoimmune disease d the use of the antibodies to cause cell lysis and kill invading cell

5. B- lymphocytes are categorized as part of the adaptive branch of the immune sys for all of the following reason but one Which of the following is NOT one part of reason B lyphocytes are considered part of the adaptive immunity?

a they produce memory cell when activated b their receptors will bind to only one antigen c they require costimulation from an activated T helper cell d thet are a first line of defense that can begin killing

6. Over lap in the innate and adaptive immune sys is seen in all of the following examples but one Which of the following examples does NOT illustrate the over lap of innate and adaptive immune resposes ??? a dendritic cell presenting antigen on their MHC II proteins to T helper cells b macrophage becoming activated macrophages in response to cytokines realesed by T helper cells c natural killer cell causing of an abnoraml host cell lacking MHC proteins d Plasma cell that produce large amounts of IgE that will ultimetly allow mast cell to relase histamine

7. Which of the following examples below describe an autoimmune disease? a infection and death of T helper cells bya virus resulting in a loss of adaptive immunity b realse of bacterial endotoxins that block acetylcholine realse result is muscle paralysis c antibody binding to acetylcholine receptors of hte motor end palte resulting in muscle weakness.d uncontrolled cell division resulting in cell surface abnormalities recognized by natural killer cell.

8. Which of he following does NOT describe actions of interferon IFN? a virally infected cell can release interferon which attracts natural killer cell to attack and kill the IFN secreting cell b IFN binds to normal uninfected cell stimulating the activation of genes that produce anti viral proteins c IFN will attract macrophages to the secreting cell to be removed bt phagocytosis d IFN can penetrate the virla capsid and destroy the virus

HI HELP PLEASE I NEED ANSWERS TO ALL QUESTIONS PLEASE THANKS

1. during inflamation fluid will passively diffuse out of blod vessels into the nearby infected tissue. This implies all of the following EXCEPT

a.the osmolarity of the fluid surrounding infected tissues is higher than the plasma b the surrounding tissue will swell with excessive fluids c near by cappilaries have become more pearmeable d B-lymphocyte will differeniate to become plasma cell

2. which of the following best describe the qualities of most antigens?

a macromolecules that are foreign to the host b atomic elements that are not normally present in the human body c macromolecules tah tare produced by the host organism d atomic elements that are harmful or toxic

3. an adbantages to adaptive immunity is

a its memory cell that provide quicker larger and more efficient immune response upon second exposure to an antigen b its need for several cells to be activated over several days on first exposure c the ability for its individul cells to respond to many differnt pathogens d the use of antibodies that cause cells lysis and kill invading cells

4, an advantages of innate immunity is

a its a barrier taht prevent pathogens from entering into the body b the specifcity of its individual cell which specialize in the removal on one type of antigen c the numerous step in the activation of its cell that can prevent autoimmune disease d the use of the antibodies to cause cell lysis and kill invading cell

5. B- lymphocytes are categorized as part of the adaptive branch of the immune sys for all of the following reason but one Which of the following is NOT one part of reason B lyphocytes are considered part of the adaptive immunity?

a they produce memory cell when activated b their receptors will bind to only one antigen c they require costimulation from an activated T helper cell d thet are a first line of defense that can begin killing

6. Over lap in the innate and adaptive immune sys is seen in all of the following examples but one Which of the following examples does NOT illustrate the over lap of innate and adaptive immune resposes ??? adendritic cell presenting antigen on their MHC II proteins to T helper cells b macrophage becoming activated macrophages in response to cytokines realesed by T helper cells c natural killer cell causing of an abnoraml host cell lacking MHC proteins d Plasma cell that produce large amounts of IgE that will ultimetly allow mast cell to relase histamine

7. Which of the following examples below describe an autoimmune disease? a infection and death of T helper cells bya virus resulting in a loss of adaptive immunity b realse of bacterial endotoxins that block acetylcholine realse result is muscle paralysis c antibody binding to acetylcholine receptors of hte motor end palte resulting in muscle weakness.d uncontrolled cell division resulting in cell surface abnormalities recognized by natural killer cell.

8. Which of he following does NOT describe actions of interferon IFN? a virally infected cell can release interferon which attracts natural killer cell to attack and kill the IFN secreting cell b IFN binds to normal uninfected cell stimulating the activation of genes that produce anti viral proteins c IFN will attract macrophages to the secreting cell to be removed bt phagocytosis d IFN can penetrate the virla capsid and destroy the virus

Q.1 (a) Production of which of the following types of proteinsduring an innate immune response would directly lead to the lysisof a microbe?

- Membrane Attack Complex

- Perforin

- Immunoglobulin

- Interferon

Q 1. (b) Swelling due to bulk flow from the plasma into theinterstital fluid is the result of decreased protein permeabilityin the capillaries. (True or False?)

Q.1 (c) Both inflammation and fever result in an increase in thetemperature set point of the body. (True or False?)

Q.1 (d) Indicate which of the following statements describeClass I MHC molecules, describe Class II MHC molecules or decribeboth Class I MHC & Class II MHC molecules?

-This molecule is expressed on all nucleated cells.

- This molecule interacts with proteins expressed on the surfaceof Cytotoxic T cells.

- This molecule is expressed on the surface of Antigenpresenting cells.

- This molecule is important for activating helper T cells.

- This molecule is expressed on the surface of B cells

- This molecule binds to antigens that come from primarilyintracellular pathogens.

Q.1 (e) What type of B cell does not secrete many antibodiesduring a primary immune response, but is very important for asecondary immune response?

Q.1 (f)If an individual failed to develop any maturelymphocytes, they would have lessened innate responses to infectionand lessened adaptive responses to infection. (True or False?)

Q.1 (g) Which of the following statements about the late stagesof HIV infection/AIDS are true? Choose all of the correctanswers.

		A person in the late stages of AIDS is more susceptible toinfection with bacteria, fungi and viruses than a person in theasymptomatic stage of HIV infection.
		The number of CD4-expressing T cells in the blood is high duringthe late stages of HIV infection
		The number of Killer T cells in the blood can be high during thelate stages of HIV infection.
		Innate immune responses may be weakened during the late stagesof HIV infection because of the weakened adaptive responses duringthese stages.

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Describe the role of each of the following cells of the immune system, and indicate if they are part of the innate or acquired/adaptive immune response:

A. plasma cells

B. mast cells

C. helper T cells

D. monocytes

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