Biology question and answers for November 01, 2023
- Q Which of the following descriptions best explains the concept of seroconversion?Describes the development of antibodies to HIV which can then be detected in the bloodDescribes the amount of HIV in...
- Q In a 75-year-old patient who had bed rest for 4 weeks after a fracture of the femoral neck, a temperature of 38.5C has appeared, a cough with phlegm and dyspnea....
- Q A 39-year-old man, who previously considered himself to be practically healthy, felt severe pain in the epigastric region and strong weakness while performing heavy physical work. After 20 minutes the...
- Q The presence of which of the following class of antibodies indicates a current infection rather than a previous infection or vaccination?IgAlgGlgDIgMIgE
- Q Which of the following mechanism/s help/s to prevent autoimmunity (attack of self-antigens)?A. The maturation of T cells in the thymusB. The maturation of B cells in the red bone marrowC....
- Q While Gl and Pulmonary Anthrax have a mortality rate of up to 99% the mortality rate of cutaneous anthrax is lower. How can this be explained? The pathogen has a...
- Q If the per capita death rate is 0.17 and there are 14 000 individuals in the population, then the number of deaths expected in the year would be around 2400...
- Q Which one of the following statements is TRUE of C-I drugs?Are stocked in only specially registered pharmaciesHave no legitimate medical useContain limited quantities of narcotic and non-narcotic drugsHave the least...
- Q Read the following quotation about melanoma, a kind of skin cancer, answer the question. "Thirty-one patients with histologically confirmed measurable metastatic melanoma were enrolled [in this] study" ("Melanoma," 2006, p....
- Q Who received the Nobel Prize in chemistry in 1993 for inventing PCR?Gregor MendelThomas MorganKary MullisWatson and Crick
- Q A colleague asks you to interpret an acid-fast stain on a patient's sputum sample. What is your interpretation?They must have messed-up; this can't be an acid-fast stainThe patient HAS a...
- Q In a direct ELISA...Select all that apply.a blue or yellow product is formed if the patient's sample contains an specific antibody against the microbe adsorbed to the wella microbe is...
- Q Which type of antibody is the most commonly involved in an agglutination test?IgMIgEIgDIgAIgG
- Q Which of the following medications is allowed up to 5 refills in 6 months?Methylphenidate (Schedule II)Amoxicillin (Non-controlled)Diazepam (Schedule IV)Acetaminophen (Non-legend)
- Q In ________, cancer cells, tissue transplants and _________ pathogens are targeted by _________ cells. In _______, pathogens are targeted by recognition of foreign _______ which are detected by _______ that...
- Q From the following list of persons, who is NOTauthorized to prescribe medications?PodiatristRegistered nurseOsteopathDentist
- Q During negative selectionapoptosis happens when binding strong self-antigen too stronglya T-cell is killed if self-antigen is bound looselyapoptosis happens if self-MHC is recognizeda T-cell is killed if self-MHC is not...
- Q Identify two illnesses that represent infection by one specific type of pathogen; identify the type ofmicroorganism (do not name a specific pathogen) that causes each.Example: Ebola (Bacteria)a. Identify one illness...
- Q you need a flu shot every year/season because (HA- haemoagglutinin; NA-neuroaminidase):flu virus gets rid of its HA and NA and replace them with completely new ones every yearthe virus can...
- Q Cytopathic effects (CPE) are visible changes in cells due to:expression of the cell's genes (ie- expression of the cell's genes is turned on)viral infectionbacterial infectionmutations
- Q What is the correct term for the part of the blood spatter to which the arrow is poispatterspike/spinetailsatellite
- Q These are the cells of the specific immune response that are responsible for activating B cells:A. APCSB. NeutrophilsC. Plasma cellsD. Th cellsE. Th2 cells
- Q This property of antibodies is responsible for preventing tetanus in people who have been vaccinated by the tetanus vaccine:A. AgglutinationB. Complement activationC. NeutralizationD. OpsonizationE. Oxidation
- Q 4. Which of the following cells are antigen presenting cells? Select the best answer.a. B cells and macrophagesb. dendritic cells and macrophagesc. neutrophils and macrophagesd. B cells, macrophages and dendritic...
- Q 3. Humoral immunity differs from cellular immunity in that humoral immunity...a. is part of the adaptive immunityb. adjusts to handle a particular microbec. is the main defense against freely-circulating pathogens...
- Q 9. Which of the following types of white blood cells produce the antibodies that are present in blood?a. B cellsb. T helper cellsc. CTLSd. Monocytese. Plasma cells
- Q 7. Natural killers ...a. destroy cells that do not express MHCIb. kill large parasites coated by antibodiesc. do not need to be stimulated by antigensd. do not need that the...
- Q 3. Neutrophils are...a. phagocytic cellsb. a type of white blood cellc. a type of granulocyted. the first type of cells to proliferate and migrate to the infection sitee. all of...
- Q 10. Which of the following statements is incorrect?a. Cytokines induce hypothalamus releases prostaglandinsb. Endotoxins from Gram-positive bacteria cause phagocytes to release cytokinesc. Prostaglandins reset the body's thermostat to a higher...
- Q 4. Monocytes are... a. the precursors of macrophages and dendritic cells b. phagocytic cells.c. the first type of cell to migrate to the infection site d. a type of antigen...
- Q 7. The second stage of inflammation is...a. Vasodilation and increased permeability of blood vessels b. Move of fluids from blood to tissues c. Phagocyte migration and phagocytosis d. Phagocytes die...
- Q 8. The four phases of phagocytosis take place in the following order: a. Adherence, ingestion, digestion, and opsonizationb. Chemotaxis, adherence, ingestion, and opsonization c. Adherence, chemotaxis, ingestion, and digestiond. Chemotaxis,...
- Q 1. Innate immunity includes all of the followingEXCEPT...a. phagocytosis.b. inflammation.c. production of antibody.d. production of interferon.e. activation of complement.
- Q 5. A chill is a sign that...a. body temperature is falling.b. body temperature is rising.c. body temperature is not changing.d. the metabolic rate is decreasing.e. blood vessels are dilating.
- Q 6. The complement system is...a. part of the 2nd line of defenseb. part of the innate immune systemc. a defensive system that "complements" the function of the cells of the...
- Q Live Attenuated Vaccines (LAVs)...are the most effective type of vaccineshave the potential to harm individuals with weak immune systemare derived from pathogens that have been weakened in the labAll options...
- Q What is/are the advantage/s of a conjugated polysaccharide vaccine over a pure polysaccharide vaccine?All options are correct.Induce a immune respond even in infantsConsistent level of protection from repeated dosesLonger-lasting protection
- Q Subunit vaccines...All options are correcthave the potential to harm individuals with weak immune systemcan be produced by Recombinant DNA Technologyinduce stronger immune response than LAVSuse any fragment from a microorganism
- Q Briefly explain how herd immunity works. What role does vaccination play in this? Who especially benefits from herd immunity?
- Q What is one advantage of an attenuated vaccine over an inactivated vaccine? What is one disadvantage?
- Q What is the Ro (R naught) of SARS-CoV-2? How does is compare to the Ro for Influenza? Measles? How does Ro impact the spread of a disease?
- Q What is the criteria used to say that a person no longer has HIV disease, but has progressed to having AIDS?when circulating HIV RNA can be detectedwhen circulating, culturable HIV...
- Q There are several complications associated with AIDS._____ is caused by a yeast. Spores are easily inhaled and can lead to a non-productive cough.Pneumocystis pneumoniaSystemic mycosesToxoplasmosisKaposi's sarcomaB Lymphocyte tumors
- Q Which of the following immunological processes would require increased energy investment in anorganism?Increase in antigen specific, neutralizing serum Immunoglobulin G levelsDecreased Cytotoxic T-lymphocyte response to a tumorIncreased antigen specific, Immunoglobulin...
- Q Joe, a 55-year-old type 2 diabetic, complained of a tingling sensation that extended from his spine around to the middle of his rib cage. Small blisters developed as an irritated...
- Q The immune system has __ "hard-wired" memory for encounters with invaders from the (ancient) past; whereas the ___ immunesystem has an "updatable" memory which allows us to better respond to...
- Q Infants engage in __ by actively seeking emotional information from a trusted person in an uncertain situation.self-controlgive-and-takeemotional self-regulationsocial referencing
- Q The information-processing perspective_A examines separate aspects of thinkingB fails to consider biological influences on cognitive developmentC applies only to children in cultures having formal schoolingD focuses on overall cognitive change
- Q Malcolm X once stated "Education is the passport to the future, for tomorrow belongs to those who prepare for it today." Discuss the significance of the quotation. Use specifics from...
- Q Skin-associated lymphatic tissue (SALT), which is located just underneath the epidermal layer of the skin, is associated with which of the following organ systems? (A) Digestive(B) Endocrine(C) Immune(D) Secretory(E) Nervous
- Q Which of the following is a red flag for low health literacy?A. Unable to name medications, explain purpose, or providing dosingB. Asks questions regarding tests resultsC. Compliance with medicationsD.Attends all...
- Q Sickle cell disease (SCD) is an autosomal recessive condition that can be caused by mutations in the gene forcystic fibrosis transmembrane conductance regulatorLCAdystrophinhuntingtinB-globin
- Q Which of the following is a FALSE statement regarding Balantidium coli?A) it moves using pseudopodsB) it may be acquired by the fecal-oral routeC) it is a protozoanD) it may cause...
- Q Infection with this pathogen can affect the central nervous system, resulting incognitive deficits, personality changes, swollen lymph nodes, and seizures and couldbe fatal if untreated.A) Giardia lambliaB) Trypanosoma bruceiTrichomonas vaginalisD)...
- Q A group is planning a cross-country hike on the Pacific Crest Trail, from the Mexican border, through California, Oregon, and Washington, to the Canadian border. Which of the following should...
- Q Which of the following statements regarding fecal transplant is correct?Select one:a. This treatment is designed to jump-start the intestinal microbiota after an infection with Clostridium difficile resuts in acute diarrhea.b....
- Q Of the following choices, which could be used in the treatment of a patient in order to determine the patient's cancer subtype?Select one:a. Transformationb. PCRc. Microarray analysisd. Oryza sativae. Western...
- Q Which of the following is NOT a benefit of normal Flora?Normal flora are dangerous for our healthNormal flora synthesize and excrete vitaminsNormal flora antagonize other bacteriaNormal flora stimulates the immune...
- Q Explain why Schistosomiasis is harmful to humans. In your response, include aspects of transmission, control, and management
- Q The clinical case described in the previous question is an example of...healthcare-associated transmissiondirect contact transmissionairborne transmissionvehicle transmissiontransmission by fomites
- Q Gram-negative vibrio were observed in a stool sample from a man with bloody diarrhea, fever, and abdominal cramping. The man stated that he started feeling sick a couple of days...
- Q Endotoxin is responsible for symptoms caused by which of the following organisms?S. pyogenesL. monocytogenesC. botulinumN. meningitidisC. tetani
- Q If a person has recovered from a disease but continues to shed disease agents, that person is a...vectorfomitecarrierVehicle
- Q All of the following are examples of communicable diseases except...chickenpoxTetanusCOVID-19the common coldmeasles
- Q A man takes a roll of dollar bills out of his pocket and "peels" off a few to pay the restaurant tab. Each time he peels, he wets his thumb...
- Q Explain the most likely reason why smallpox was successfully eradicatedbut Naegleria probably never will be.The symptoms of smallpox are easier to identify than the symptoms of Naegleira, so some carriers...
- Q Drag the correct term to the correct definition. Condensed area of DNA found within prokaryotic cells Small, circular, double-stranded DNA molecules Synthesizes proteins III Store excess nutrients within cytoplasmic structures...
- Q Which activity might lead to damage of a microscope and specimen?Adjusting the diaphragm to obtain more light under high powerCleaning the ocular and objectives with lens paperUsing the coarse adjustment...
- Q Explain in details why it is important for nurses and people in the medical field to know about heart attacks and how risk factors are different from women and men....
- Q Which of the following would be LEAST able to make bacteria more virulent and infectious? (A) the ability to evade nonspecific and specific body defenses (B) the secretion of lipoteichoic...
- Q Which of the following statements is correct about B lymphocytes and T lymphocytes?Both of them are leukocytes.All the three statements are correct.B cells attack pathogens specifically, while T cells attack...
- Q If you answer the question correctly, the extra points will be manually added by the instructor later (itwon't be added automatically).Select ALL the choices below that is/are true of the...
- Q Which of these can give you exposure to mutagens? Mark all correct answers. sunbathing or tanning salon Tornado that damage radiation-emitting equipment Chemotherapy in hospital Exposure to weapons that do...
- Q One of the primary concepts of biology is natural selection which is based on the principle of an organism s ability to adapt to their surrounding environment. This concept also...
- Q Peptic ulcers are caused by damage to the wall of the stomach by the acids that help digest food.This can be caused by the failure oftight junctionsadhering junctionsgap junctionsplasmodesmataadhering and...
Get Answers to Unlimited Questions
Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!
Membership Benefits:
- Unlimited Question Access with detailed Answers
- Zin AI - 3 Million Words
- 10 Dall-E 3 Images
- 20 Plot Generations
- Conversation with Dialogue Memory
- No Ads, Ever!
- Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!