Module 8 mcq final ali mosaad with answers

192019/1/ Module 8 MCQ
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Home / My courses / Experimental Exams_Second Year 2018-2019 / Topic 3 / Module 8 MCQ
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Ali Mosaad

QUESTION 11
Not answered
Marked out of 1.00
Ondansetron can be prescribed for prophylaxis against
Select one:
a. Peripheral vascular disease
b. NSAIDs-induced peptic ulcer
c. Chemotherapy-induced vomiting
d. Migraine
Your answer is incorrect.
The correct answer is: Chemotherapy-induced vomiting

QUESTION 22
Not answered
Marked out of 1.00
The two most common types of viral vaccines are killed vaccine and live-attenuated
vaccines. Regarding these vaccines, which one of the following statements is more
accurate?
Select one:
a. Killed vaccines induce a longer-lasting response than do live-attenuated vaccines.
b. Killed vaccines are safer to give to immunocompromised patients than are live-
attenuated vaccines.
c. Killed vaccine induce a broader range of immune response than do live-attenuated
vaccines.
d. Killed vaccines can stimulate an adequate IgA response.
The correct answer is: Killed vaccines are safer to give to immunocompromised patients than are live-
attenuated vaccines.

QUESTION 33
Not answered
Marked out of 1.00
A patient was discharged from our hospital on a 3-week course of clindamycin. The
potential adverse effect you have to watch for is:
Select one:
a. Pseudotumor cerebri.
b. Clostridium difﬁcile diarrhea.
c. Hyperbilirubinemia.
d. Nephrotoxicity.
The correct answer is: Clostridium difﬁcile diarrhea.

QUESTION 44
Not answered
Marked out of 1.00
Which one of the following statements best describes haptens?
Select one:
a. They cannot induce antibodies unless they are bound to a carrier protein
b. They activate complement by binding to Fc receptor on phagocytes
c. They bind to class II MHC proteins but not to class I MHC proteins
d. They are typically polypeptides in nature
The correct answer is: They cannot induce antibodies unless they are bound to a carrier protein

QUESTION 55
Not answered
Marked out of 1.00
Virtually all bacteria both gram positive and gram negative contain peptidoglycan as well as speciﬁc
enzymes for its synthesis. All of the following statements concerning gram positive and gram
negative bacteria are true EXCEPT:
Select one:
a. Both gram positive and gram negative bacteria contain equal amounts of teichoic acid.
b. Enzymes that catalyze cross linking of peptidoglycan can be antibiotic targets.
c. Peptidoglycan layer is thicker in gram positive bacteria.
d.
The shape of bacteria is a function of peptidoglycan.
The correct answer is: Both gram positive and gram negative bacteria contain equal amounts of
teichoic acid.

QUESTION 66
Not answered
Marked out of 1.00
Which of the following is CORRECT for the cell walls of most fungi:
Select one:
a. Lack antigenicity
b. Contain sterols.
c. The target of penicillin action.
d. Contain chitin and glucan.
The correct answer is: Contain chitin and glucan.
QUESTION 77
Not answered
Marked out of 1.00
The followings are functions of ectoplasm in protozoan parasitesEXCEPT:
Select one:
a. Respiration and protection
b. Digestion and reproduction
c. Secretion and excretion
d. Ingestion and movement
The correct answer is: Digestion and reproduction

QUESTION 88
Not answered
Marked out of 1.00
The class of antibiotics known as the quinolones are bactericidal. Their mode of action on growing
bacteria is thought to be:
Select one:
a. Inhibition of β-lactamase
b. Inhibition of DNA gyrase
c. Inhibition of protein synthesis by acting on the 30s subunit
d. Inactivation of penicillin-binding proteins
The correct answer is: Inhibition of DNA gyrase

QUESTION 99
Not answered
Marked out of 1.00
ONE statement about therapy with antiviral drugs is wrong:
Select one:
a. Acyclovir may be given orally in recurrent herpes simplex genital infections
b. Foscarnet is the drug of choice in recurrent cytomegalovirus retinitis infections in
patient treated against HIV
c. Amantadine oral formulations are absorbed good in inﬂuenza infections
d.
Zanamivir could be easily prescribed in patient with chronic obstructive lung
diseases ( COPD).
The correct answer is:
Zanamivir could be easily prescribed in patient with chronic obstructive lung
diseases ( COPD).

QUESTION 1010
Not answered
Marked out of 1.00
Which of the following is NOT a characteristic of a growth curve?
Select one:
a. Shows development of a microbial population when inoculated into a growth
medium
b. Plotted with logarithmic numbers
c. Graphs numbers of microbes versus time
d. Each growth curve consists of three distinct phases
The correct answer is: Each growth curve consists of three distinct phases

QUESTION 1111
Not answered
Marked out of 1.00
The mechanism by which microorganisms may develop resistance to drugs can be due to
production of enzymes that inactivate the drug. This is true for to each of the following drugs
EXCEPT:
Select one:
a. Chloramphenicol
b. Polymixins
c. Penicillins
d. Aminoglycosides
The correct answer is: Polymixins

QUESTION 1212
Not answered
Marked out of 1.00
The main cell responsible for expulsion of intestinal worms is:
Select one:
a. Suppressor T lymphocyte
b. Th2 lymphocyte
c. Th1 lymphocyte
d. Cytotoxic T lymphocyte
The correct answer is: Th2 lymphocyte
QUESTION 1313
Not answered
Marked out of 1.00
MHC class I molecules are critically important in what immunologic process;
Select one:
a. Opsonization
b. Phagocytosis
c. Antigen presentation
d. CD8 + T cell cytotoxicity
The correct answer is: CD8 + T cell cytotoxicity

QUESTION 1414
Not answered
Marked out of 1.00
Which of the following statements is true as regards to F + x F - mating events?
Select one:
a. DNA is transferred from F - to F + cells
b. DNA is transferred from F + to F - cells
c. No DNA is transferred because F+ cells are unable to perform conjugation
d. None of the above
The correct answer is: DNA is transferred from F + to F - cells
QUESTION 1515
Not answered
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Each of the following statements concerning lysogeny is correct EXCEPT;
Select one:
a. Some lysogenic bacteriophages encode toxins that cause human disease
b. Viral DNA is integrated into bacterial DNA
c. The only viral gene expressed is that coding for repressor protein
d. Viral genes replicate independently of bacterial genes
The correct answer is: Viral genes replicate independently of bacterial genes

QUESTION 1616
Not answered
Marked out of 1.00
Each of the following statements concerning viruses is correct EXCEPT:
Select one:
a. Viruses can reproduce only within cells
b. Neutralizing antibody is directed against the viral nucleic acid
c. The proteins on the surface of the virus mediate the entry of the virus into host
cells
d. Enveloped viruses require host cell membranes to obtain their envelopes
The correct answer is: Neutralizing antibody is directed against the viral nucleic acid

QUESTION 1717
Not answered
Marked out of 1.00
An intravenous drug addict enters the emergency room with a fever of 38.3 o C and chills. It
was determined that the patient has endocarditis. Blood cultures conﬁrm the presence of
methicillin –resistant staphylococcus aureus. The best parenterally administered antibiotic
therapy for this condition is:
Select one:
a. Ampicillin
b. Gentamicin
c. Piperacillin
d. Vancomycin
The correct answer is: Vancomycin

QUESTION 1818
Not answered
Marked out of 1.00
A10-week -old infant is diagnosed with meningitis. A lumber puncture reveals numerous
neutrophils and gram positive bacteria. She is admitted to the hospital and started on IV β-
lactams. Which of the following targets would most likely play a role in the development of
resistance to the antibiotics?
Select one:
a. Penicillin -binding proteins (PBPs)
b. DNA gyrase
c. 50 S ribosomal subunit
d. 30 S ribosomal subunits
The correct answer is: Penicillin -binding proteins (PBPs)

QUESTION 1919
Not answered
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Opportunistic parasites are :-
Select one:
a. Parasites which are found attached to the superﬁcial tissue of the host causing infestation
b. Parasites of low pathogenicity and become highly pathogenic in patients with a
defective immune system .
c. Parasites that are able to exist independently of their host, leading a free living life.
d. Parasites that enter accidentally and can live in a host different from their normal.
The correct answer is: Parasites of low pathogenicity and become highly pathogenic in patients with
a
defective immune system .

QUESTION 2020
Not answered
Marked out of 1.00
Metachromatic granules are inclusion granules which are chemically composed of:
Select one:
a. Polysaccharide
b. Proteins
c. Lipids
d. Polyphosphates
The correct answer is: Polyphosphates
QUESTION 2121
Not answered
Marked out of 1.00
The arthropod that causes vagabond's disease is:
Select one:
a. Bed bug
b. Body louse.
c. Tsetse ﬂy
d. Winged bug
The correct answer is: Body louse.

QUESTION 2222
Not answered
Marked out of 1.00
Regarding the function of the different classes of antibodies, which one of the following
statements is the most accurate?
Select one:
a. IgG is the antibody predominantly produced in the secondary immune response.
b. IgM defends against worm parasites
c. IgE blocks the binding of viruses to mucous membranes
d. IgA acts as an antigen receptor on the surface of B cells.
The correct answer is: IgG is the antibody predominantly produced in the secondary immune
response.

QUESTION 2323
Not answered
Marked out of 1.00
Regarding endotoxins, which of the following is the most accurate?
Select one:
a. They are polypeptides
b. They are found primarily in gram positive bacteria
c. They can induce the synthesis of interleukin -1
d. They can be treated with formaldehyde to form effective toxoid vaccines
The correct answer is: They can induce the synthesis of interleukin -1

QUESTION 2424
Not answered
Marked out of 1.00
Fever, chills, and decreased renal functions occurs with intravenous
administration of one of the following
Select one:
a. Ketoconazole
b. Amphotericin B
c. Itraconazole
d. Flucytosine
The correct answer is: Amphotericin B

QUESTION 2525
Not answered
Marked out of 1.00
For induction of labor at full-term, which of the following drugs could be used
Select one:
a. Carboprost
b. Misoprostol.
c. Alprostadil
d. Dinoprostone
The correct answer is: Dinoprostone
QUESTION 2626
Not answered
Marked out of 1.00
The ﬁrst step in the management of Scorpion sting is:
Select one:
a. Antivenim
b. Potential analgesic
c. Maintenance of airway
d. Intravenous infusion and hydrocortisone
The correct answer is: Maintenance of airway

QUESTION 2727
Not answered
Marked out of 1.00
All the following statements about Lesser Diptera are FALSE EXCEPT:
Select one:
a. All develop by incomplete metamorphosis
b. All are vectors of ﬁlarial worms
c. All have humped thorax
d. All possess piercing and sucking mouth part
The correct answer is: All possess piercing and sucking mouth part
QUESTION 2828
Not answered
Marked out of 1.00
Drinking of water containing infected Cyclops can transmit to man:
Select one:
a. Dracunculusmedinensis
b. Filarial worms
c. Leishmaniaspecies
d. Diphylobothriumlatum
The correct answer is: Dracunculusmedinensis

QUESTION 2929
Not answered
Marked out of 1.00
Immunity may be natural or acquired. Which one of the following best describes
acquired immunity?
Select one:
a. Recognition of PAMPS by Toll-like receptors.
b. Maternal transfer of antibody
c. Inﬂammatory response
d. Presence of natural killer (NK) cells
The correct answer is: Maternal transfer of antibody
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