Biology question and answers for November 02, 2023
- Q Which of the following statements about dendritic cells is incorrect?They are part of the 2nd line of defenseThey are antigen presenting cells (APC)They are phagocytic cellsThey are part of the...
- Q The antibodies that can fix (i.e. activate) complement are...IgM and IgAIgG and IgAIgG and IgDIgM and IgGIgE and IgG
- Q Natural killers...destroy virus-infected cellsdestroy tumor cellsdestroy cells lacking MHC IThey are always activeAll the statements are true
- Q Basophils...A. are phagocyticB. produce toxic proteins against large parasitesC. enter infected tissues and destroy microbesD. are part of the 1st line of defenseE. release histamine that is important in inflammation...
- Q Neutrophils...A. are antigen presenting cells (APC)B. produce toxic proteins against large parasitesC. enter infected tissues and destroy microbesD. are part of the 1st line of defenseE. All of the above
- Q Interferons...A. are named like this because they interfere with viral multiplicationA. are named like this because they interfere with viral multiplicationC. are released by virus-infected cells causing nearby cells to...
- Q Which type of immunity is induced by an injection of tetanus anti-toxin?Naturally-acquired active immunityNaturally-acquired passive immunityArtificially-acquiredactive immunityArtificially-acquired passive immunityInnate immunity
- Q CTLs...binds to an Ag-MHCI complex on the surface of cells that are infected with viruses or became tumorousattach to target cells and release perforins and granzymes which induces apoptosisare part...
- Q Salmonella enterica uses a Type III secretion system to inject bacterial proteins into the host cell. What is the effect of this VF in an infection with Salmonella?A. The host...
- Q How is vaccination related to memory cells/memory responses? how does this relationship allow vaccination to protect us from severe illness (when we come into contact with the pathogen following vaccination)
- Q Which of the following leaders was put to death by the Italians during WWII?A. Benito MussoliniB. Adolf HitlerC. Francisco Franco
- Q Reed-Sternberg cells are indicative ofA. Hodgkin lymphomaB. LeukemiaC. Non-hodgkin lymphomaD. Multiple myeloma
- Q Helper T cells:A. are activated by antigen presented with MHC II proteins.B. convert to plasma cells after they are activated.C. do not interact with MHC proteins.D. secrete antibodies that target...
- Q More women than men are affected by autoimmune diseases.TrueFalse
- Q Which of the following diseases are know to cause secondary immune deficiency?DiGeorge syndromeAl of the aboveWiskott-Aldrich SyndromeHIV
- Q In the 1950's, it was discovered that the Minamata Bay in Japan was contaminated with A. mercury B. argon C. arsenic D. iron
- Q Given the transfusion scenario presented below, discuss whether or not an immune reactionwould be expected:A person with A+ blood receives B- bloodIn your response, you must address these three parts...
- Q Vascular permeability participates in the inflammatory response byResponding to bradykinin and histamineFacilitating the movement of fluid into the tissue as part of edemaFacilitating delivery of WBCs and platelets to the...
- Q Active acquired adaptive immunity develops through prior exposure, either through vaccinationor actual exposure to the pathogenTrueFabe
- Q System InteractionsDescription of the systems, organs and/or specialized cells that are affectedWhere does this affect (You can focus on different systems, or different cells, or a combination of the two...
- Q Which of the following statements are true of pyrogens?All of the aboveCan originate from within (endogenous) or outside (exogenous) the bodyCause fevers which are always detrimental if not managed by...
- Q Wound healing is affected by many factors, which of the factors listed here could potentiallyinterfere with or prolong healing time?ObesityAl of the aboveDiabetesUse of corticosteroids
- Q An overactive spleen would most likely result inSplenic function has no impact on platelet countIncreased platelet countDecreased platelet count
- Q If an industry was visited by the WPB during WWII, what was being asked of that industry?A. Make war materialsB. Close its doorsC. End labor unionsD. Increase wages 50%
- Q Please give and explain biological activities and therapeutic values of Eravacycline.
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