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MERU UNIVERSITY OF SCIENCE AND TECHNOLOGYP.O. Box 972-60200 – Meru-Kenya.
Tel: +254 (0)799529958, +254 (0)799529959, +254 (0)712524293
Website: www.must.ac.ke Email: info@must.ac.ke
University Examinations 2021/2022
FIRST YEAR, THIRD SEMESTER EXAMINATION FOR THE DEGREE OF BACHELOR
OF SCIENCE IN CLINICAL MEDICINE & COMMUNITY HEALTH
CCM 3134: MEDICAL MICROBIOLOGY
DATE: OCTOBER 2022 TIME: 3 HOURS
INSTRUCTIONS:
a) The paper comprises of three sections, A, B and C
b) Section A comprises of 20 MCQ’s Answer all
c) Section B comprises of 8 short answer questions. Answer all
d) Section C comprises of 2 Essay questions. Answer both
e) Write the correct answer in the booklet provided.
SECTION A : MULTIPLE CHOICE QUESTIONS (20MARKS)
1. The significance of the plasma membrane is that
a. It selectively allows some molecules to pass into the organism
b. It prevents movement of molecules out of the organism
c. It is the site of protein synthesis
d. All of the above
2. Some bacteria are considered pleormophic. This means
a. They are shaped like bent rods
b. They have a corkscrew shape
c. They do not have just one shape
d. They are neither bacilli or cocci
3. The 70 S prokaryotic ribosomes consist of
a. Two 40S subunits
Meru University of Science & Technology is ISO 9001:2015 Certified
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, b. A 50 S and a 30 S subunit
c. A 40 S and a 30 S subunit
d. A 50 S and a 20 S subunit
4. Gram positive cells
a. Have a second, outer membrane that helps retain the crystal violet stain
b. Have multiple layers of peptidoglycan that help retain the crystal violet stain
c. Have a thick capsule that traps crystal violet stain
d. Have a periplasmic space that traps the crystal violet stain
5. A bacillus bacterium with a single flagellum at each end is described as
a. Monotrichous
b. Amphitrichous
c. Lophotrichous
d. Peritrichous
6. The purpose of a bacteria endospore is to
a. Allow the bacterium to make hundreds of seeds to spread on the wind
b. Help the bacterium to differentiate into faster growing stages of bacteria
c. Allow the bacterium to survive the absence of oxygen
d. Allow the bacterium to survive extended periods of heat or dryness
7. Which of the following are obligate intracellular parasites
a. Viruses
b. Chlamydia
c. Rickettsia
d. All of the above
8. Staphylococcus grow in/on the ___________of warm blooded animals
a. Skin and mucus membranes
b. Teeth and
c. Large intestines
d. None of the above
9. Which of the following is a normal skin resident
a. Staphylococcus epidermidis
b. Staphylococcus aureus
c. Clostridium botulimun
d. Neisseria meningitides
Meru University of Science & Technology is ISO 9001:2015 Certified
Foundation of Innovations Page 2
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