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MCB2010:Microbiology Final Exam Questions and Answers 2024/25 Update
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MCB2010:Microbiology Final Exam Questions and Answers 2024/25 Update It forma a dark image against a bright background. it can be used to observe live or preserved, stained or unstained specimens. EX: bacteria is not living -IT CANNOT BE USED TO OBSERVE INTRACELLULAR STRUCTURES SUCH AS ENDOSPORES...

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  • November 4, 2024
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MCB2010:Microbiology Final Exam Questions and
Answers 2024/25 Update

1. It forms a dark image against a bright background and can be used to observe
live or preserved, stained or unstained specimens (e.g., non-living bacteria). It cannot
be used to observe intracellular structures such as endospores, DNA, ribosomes, etc.,
of living cells.
Choose matching term:
A) Fluorescence microscope
B) Phase contrast microscope
C) Dark field microscope
D) Bright field microscope
Answer: C) Dark field microscope
2. Examples of monomorphism:
Choose matching term:
A) Neisseria and B. anthracis
B) S. pyogenes and S. typhii
C) E. coli and S. aureus
D) C. tetani/diptheria
Answer: A) Neisseria and B. anthracis
3. Requires the use of two basic dyes of contrasting colors. Commonly used for
staining organisms in pathological specimens.
Choose matching term:
A) Gram stain
B) Differential staining
C) Negative staining
D) Simple staining
Answer: B) Differential staining
4. Non-acid fast G- color after counterstain, methylene blue.
Choose matching term:

,A) Purple
B) Blue
C) Mordant
D) Clear
Answer: B) Blue
6. Out of protoplast, fungi, L-form, mycoplasmas, and animal cells, which have a
cell wall?
Choose matching term:
A) Bacteriology
B) Bacteria
C) Fungi
D) Endospores
Answer: C) Fungi
7. Composed of ribosomal RNA (rRNA) and proteins.
Choose matching term:
A) Ribosomes
B) Lysosomes
C) Plasma membrane
D) Bacteriology
Answer: A) Ribosomes
8. All bacteria when they are metabolically active and reproducing; when they are
young and multiplying, they are heat sensitive and can be killed by UV rays and
boiling.
Choose matching term:
A) Vegetative cells
B) Eukaryotic cell
C) Simple staining
D) Gram negative
Answer: A) Vegetative cells
9. Cocci growing in chains. Example: Streptococcus pyogenes.
Choose matching term:

,A) Diplococci
B) Streptococci
C) Pathogen
D) Bacilli
Answer: B) Streptococci
10. Developed by Christian Gram; it divides most bacteria into two groups: Gram-
positive (appear purple) and Gram-negative (appear pink or red).
Choose matching term:
A) Gram stain
B) Hanging drop method
C) Fermentation
D) Gram negative
Answer: A) Gram stain
11. All viral diseases, Treponema pallidum, Chlamydia trachomatis, Streptococcus
pyogenes, and pneumonia etiologies (causes).
Choose matching term:
A) Peptidoglycan
B) Exceptions to Koch's postulates
C) Acid fast stain
D) Pasteurization
Answer: B) Exceptions to Koch's postulates
12. Bacteria that do not have a cell wall and are genetically unable to synthesize cell
walls.
Choose matching term:
A) Bacillus
B) Virus
C) Archaebacteria
D) Mycoplasm
Answer: D) Mycoplasm

, 13. Contains more lipid in their cell wall and has an outer membrane (lipoprotein,
phospholipid layer, lipopolysaccharides, and porin protein).
Choose matching term:
A) Gram variable
B) Gram negative
C) Gram positive
D) Peptidoglycan
Answer: B) Gram negative
14. Multi-cellular fungi.
Choose matching term:
A) Bacteria
B) Yeast
C) Mold
D) Virus
Answer: C) Mold
15. Not true cocci or a true bacillus. Example: Alcaligenes faecalis.
Choose matching term:
A) Coccobacilli
B) Spirilla
C) Vibrios
D) Streptobacilli
Answer: A) Coccobacilli
16. Has more than one type of microorganism.
Choose matching term:
A) Contaminated culture
B) Pure culture
C) Mixed culture
D) Bacilli
Answer: C) Mixed culture
17. Made of three parts: Filament (propels the bacteria), Hook (connects filament to
basal body), and Basal body (foundation that holds the flagellum inside the body of

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