‫وزارة التعليم العالي‬
‫جامعة المجمعة‬
‫كلية العلوم الطبية التطبيقية‬
‫قسم علوم المختبرات الطبية‬
Ministry of Higher Education
Majmaah University
College of Applied Medical Sciences
Department of Medical Laboratory
Lecture 2
Name of Instructor: Dr. Mosaab Omar
Location: Majmaah male campus
MCQ:
Please find the proper answer of the following:
1- The Infection is composed of different factors which are………..
a- Pathogen
b- Host
c- Environment
d- All of them
2- ……………It means the ability of a microbiological agent to induce
disease:
a- Pathogenicity
b- Virulence
c- Mutation
d- None of them
3- The pathogenicity of pathogen is related to…………………
a- Invasiveness
b- virulent
c- Number of pathogen
d- Mutation (variability)
e- All of them
4- The Severity of the disease after infection occurs and Measured by case
fatality rate is………..
a- Virulence
b- Susceptibility
c- Pathogenicity
d- Allergy
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5- ……………………means Ability of an organism to produce an immune
response that provides protection against reinfection with the same or
similar agent:
a- Virulence
b- Pathogenicity
c- Immunity
d- Recovery
6- Barriers for Defense Against Infection are………………….
a- Skin
b- Mucous membranes
c- Cilia
d- Coughing
e- All of them
7- Time between exposure and onset of symptoms or signs of infection
is........
a- Recovery period
b- Incubation period
c- Disease period
d- None of them
8- The importance of Normal Micro flora are…………………
a- Prevent the growth of pathogens
b- Stimulate the immune system to produce antibodies that cross-react with
invading pathogens
c- Aid in digestion of cellulose in ruminants.
d- Produce essential nutrients
e- All of them
9- One of the important features of Gram positive Bacteria is…………….
a- Thick peptidoglycan wall
b- No periplasmic space
c- Presence of capsule
d- Both A and B
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10- Unique features of Gram –ve bacteria are……………..
a. Thin peptidoglycan wall
b. Has periplasmic space containing different degradative enzymes such
as deoxyribonucleases, -lactamases and proteases
c. Outer membrane containing lipid A, an endotoxin
d. All of them
11- An example of Gram +ve bacteria is……………………….
a- Neisseria
b- Salmonella typhi
c- E. coli
d- Staphylococcus aureus
e- All of them
12- Are pieces of DNA or RNA surrounded by protein coat is…….
a- Bacteria
b- Protozoa
c- Viruses
d- Helminths
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