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BIOL325 sample final exam
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Choose the single best answer for each of the following questions. (1 mark each) 1. Which of the following is NOT true about protozoa? a. All are eucaryotic. b. All are unicellular. c. All have complex cells. d. They have rigid cell walls. e. They are classified according to their locomot...

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  • August 26, 2024
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  • 2024/2025
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BIOL325 sample final exam


Introductory Microbiology (Athabasca University)

, BIOLOGY 325
Introductory Microbiology
Final Examination
Version A


Section A

Multiple Choice Questions (20 marks)

Choose the single best answer for each of the following questions. (1 mark each)

1. Which of the following is NOT true about protozoa?

a. All are eucaryotic.
b. All are unicellular.
c. All have complex cells.
d. They have rigid cell walls.
e. They are classified according to their locomotion.

2. Which of the following pairs is mismatched?

a. alcohol-acetone—decolorizer
b. crystal violet—basic dye
c. safranin—acid dye
d. iodine—mordant
e. none of the above

3. Which of the following is NOT true about gram-negative cell walls?

a. They protect the cell in a hypotonic environment.
b. They have an extra outer layer composed of lipoproteins, lipopolysaccharides, and
phospholipid.
c. They are toxic to humans.
d. They are sensitive to penicillin.
e. Their Gram reaction is negative.

4. Which of the following best describes the pattern of microbial death?

a. The cells in a population die at a constant rate.
b. All the cells in a culture die at once.
c. All the cells in a culture remain alive.
d. The pattern varies, depending on the antimicrobial agent.
e. The pattern varies, depending on the species.

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