Microbiology Test: Practice Quiz MCQ

34 Questions | By Amandajane9 | Updated: Mar 21, 2022 | Attempts: 110

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Questions and Answers

1.

Who discovered that cowpox was an effective alternative to variolation?
- A.
  
  Walter Reed
- B.
  
  Semmelweis
- C.
  
  Snow
- D.
  
  Jenner
Correct Answer
D. Jenner
2.

Who discovered Salvarsan cures syphilis?
- A.
  
  Fleming
- B.
  
  Jenner
- C.
  
  Ehrlich
- D.
  
  Pasteur
Correct Answer
C. Ehrlich
3.

Tetracycline is most effective for which kind of bacteria?
- A.
  
  Gram +
- B.
  
  Gram -
Correct Answer
B. Gram -
4.

What's special about rickettsiae and chlamydiae?
- A.
  
  No cell wall
- B.
  
  Photosynthesize
- C.
  
  Slime
- D.
  
  Only grow in living cells
Correct Answer
D. Only grow in living cells
5.

What does gram positive bacteria have that gram negative doesn't?
- A.
  
  Teichoic acid
- B.
  
  Porins
- C.
  
  Inclusions
Correct Answer
A. Teichoic acid
6.

What does obligate facultative bacteria?
- A.
  
  Need oxygen
- B.
  
  Don't need oxygen
- C.
  
  With or without oxygen
- D.
  
  Need low pH
Correct Answer
C. With or without oxygen
7.

Which genera form spores?
- A.
  
  Pneumonia
- B.
  
  Bacillius and clostridium
- C.
  
  Listeria and bacillus
Correct Answer
B. Bacillius and clostridium
8.

In bacteria how many ATP can be made from 1 glucose molecule?

Correct Answer
38
9.

Where is bacterial DNA stored?

Correct Answer
nucleoid
10.

Bacteria is diploid.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False
11.

Which of these does gram negative bacteria contain?
- A.
  
  Porins
- B.
  
  Thick peptidoglycan layer
- C.
  
  NAM and NAG
- D.
  
  Teichoic acid
Correct Answer
A. Porins
12.

How do bacterial cells divide? (two words)

Correct Answer
binary fission
13.

These are proteinaceous structures used for protection and attachment to other cells or tissues. Can represent a virulence factor in the disease process.

Correct Answer
pili
14.

Why are endospores sometimes formed?
- A.
  
  In response to viruses
- B.
  
  For reproduction
- C.
  
  Because of excess oxygen
- D.
  
  Nutrient limitation
Correct Answer
D. Nutrient limitation
15.

What is considered the fingerprint for bacterial identification?
- A.
  
  TRNA
- B.
  
  16s RNA
- C.
  
  30s RNA
- D.
  
  Polymerase
Correct Answer
B. 16s RNA
16.

What year did the Classical Golden Age of Microbiology end?

Correct Answer
1914
17.

What is feedback inhibition an example of ( in cellular metabolism)
- A.
  
  Glycolysis
- B.
  
  Competitive inhibition
- C.
  
  Non competitive inhibition
- D.
  
  Anaerobismn
Correct Answer
C. Non competitive inhibition
18.

Who worked on transposons and corn maize?
- A.
  
  Calmette
- B.
  
  Pasteur
- C.
  
  Fleming
- D.
  
  McClintock
Correct Answer
D. McClintock
19.

What is the final electron acceptor in fermentation?

Correct Answer
pyruvate
20.

Fermentation offers more energy than regular prokaryotic metabolism.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
a lot less energy

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21.

What are the three types of gene transfer in bacteria?
- A.
  
  Genetic engineering
- B.
  
  Conjugation
- C.
  
  Pathogenicity
- D.
  
  Transduction
- E.
  
  Translation
- F.
  
  Transformation
- G.
  
  Transitioning
Correct Answer(s)
B. Conjugation
D. Transduction
F. Transformation
22.

Transduction involves
- A.
  
  Chromosomes
- B.
  
  Bacteriophages
- C.
  
  Quinolones
- D.
  
  Flagella
Correct Answer
B. Bacteriophages
23.

Which are synthetic antibacterial agents?
- A.
  
  Isoniazid
- B.
  
  Cowpox
- C.
  
  Sulfonamides
- D.
  
  Quinolones
- E.
  
  R-plasmids
Correct Answer(s)
A. Isoniazid
C. Sulfonamides
D. Quinolones
24.

What is transcription?
- A.
  
  Copy DNA to RNA
- B.
  
  Used to make proteins
Correct Answer
A. Copy DNA to RNA
25.

What did Griffith's experiments describe?
- A.
  
  Endospores
- B.
  
  Transposons
- C.
  
  Transformation
- D.
  
  Pure cultures
Correct Answer
C. Transformation
26.

Who discovered Penicillium mold kills bacteria?
- A.
  
  Koch
- B.
  
  Pasteur
- C.
  
  Fleming
- D.
  
  Walter Reed
Correct Answer
C. Fleming
27.

Who discovered that med students were giving pregnant women puerperal fever/childbed fever by not washing their hands?
- A.
  
  Semmelweis
- B.
  
  Snow
- C.
  
  Jenner
- D.
  
  Ehrlich
Correct Answer
A. Semmelweis
28.

How does the Beta-Lactam family of antibiotics work?
- A.
  
  Blocks DNA synthesis
- B.
  
  Interferes with cell wall synthesis
- C.
  
  Interferes with nucleic acid synthesis
- D.
  
  Inhibits RNA synthesis
Correct Answer
B. Interferes with cell wall synthesis
29.

Macrolides like clarithromycin (Biaxin), erythromycin and azithromycin (Zithromax) are
- A.
  
  Broad spectrum use again gram - bacteria
- B.
  
  Broad spectrum bacteriostatic effective against gram +
- C.
  
  Used for treating mycobacterium (TB)
- D.
  
  Not to be used if you have an allergy to penicillin
Correct Answer
B. Broad spectrum bacteriostatic effective against gram +
30.

A penicillin alternative in the Beta-Lactam family that is broad. Has long-lasting effect in the body. Works on growing cells.
- A.
  
  Vancomycin
- B.
  
  Cephalosporins
- C.
  
  Tetracycline
- D.
  
  Quinolones
Correct Answer
B. Cephalosporins
31.

A synthetic agent that blocks DNA synthesis in gram-negative and gram-positive bacteria. One of the derivatives is Cipro.
- A.
  
  Tetracycline
- B.
  
  Methicillin
- C.
  
  Quinolones
- D.
  
  Isoniazid
Correct Answer
C. Quinolones
32.

An antibiotic is a glycopeptide cell wall inhibitor. Effective on gram-positive bacteria but not gram-negative. Taken intravenously for serious staph and clostridium infections.
- A.
  
  Tetracycline
- B.
  
  Penicillin
- C.
  
  Vancomycin
- D.
  
  Ampicillin
Correct Answer
C. Vancomycin
33.

Reserved for serious infections like meningitis, cholera, typhoid, and Rocky Mountain Spotted fever. Causes aplastic anemia and gray syndrome in newborns.
- A.
  
  Quinolones
- B.
  
  Vancomycin
- C.
  
  Chloramphenicol
- D.
  
  Beta Lactam family of antibiotics
Correct Answer
C. Chloramphenicol
34.

Broad-spectrum bacteriostatic against a wide range of gram-negative bacteria. E Coli and S aureus are resistant. Consumed indiscriminately in the 1950s and 1960s. Effective against rickettsial and chlamydial infections. Causes tooth discoloration and stunted bone growth in children.
- A.
  
  Penicillin G
- B.
  
  Bacitracin
- C.
  
  Quinolones
- D.
  
  Tetracycline
Correct Answer
D. Tetracycline

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Current Version
Mar 21, 2022

Quiz Edited by
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Oct 19, 2011

Quiz Created by
Amandajane9

Microbiology Test: Practice Quiz MCQ

Who discovered that cowpox was an effective alternative to variolation?

Who discovered Salvarsan cures syphilis?

Tetracycline is most effective for which kind of bacteria?

What's special about rickettsiae and chlamydiae?

What does gram positive bacteria have that gram negative doesn't?

What does obligate facultative bacteria?

Which genera form spores?

In bacteria how many ATP can be made from 1 glucose molecule?

Where is bacterial DNA stored?

Bacteria is diploid.

Which of these does gram negative bacteria contain?

How do bacterial cells divide? (two words)

These are proteinaceous structures used for protection and attachment to other cells or tissues. Can represent a virulence factor in the disease process.

Why are endospores sometimes formed?

What is considered the fingerprint for bacterial identification?

What year did the Classical Golden Age of Microbiology end?

What is feedback inhibition an example of ( in cellular metabolism)

Who worked on transposons and corn maize?

What is the final electron acceptor in fermentation?

Fermentation offers more energy than regular prokaryotic metabolism.

What are the three types of gene transfer in bacteria?

Transduction involves

Which are synthetic antibacterial agents?

What is transcription?

What did Griffith's experiments describe?

Who discovered Penicillium mold kills bacteria?

Who discovered that med students were giving pregnant women puerperal fever/childbed fever by not washing their hands?

How does the Beta-Lactam family of antibiotics work?

Macrolides like clarithromycin (Biaxin), erythromycin and azithromycin (Zithromax) are

A penicillin alternative in the Beta-Lactam family that is broad. Has long-lasting effect in the body. Works on growing cells.

A synthetic agent that blocks DNA synthesis in gram-negative and gram-positive bacteria. One of the derivatives is Cipro.

An antibiotic is a glycopeptide cell wall inhibitor. Effective on gram-positive bacteria but not gram-negative. Taken intravenously for serious staph and clostridium infections.

Reserved for serious infections like meningitis, cholera, typhoid, and Rocky Mountain Spotted fever. Causes aplastic anemia and gray syndrome in newborns.

Broad-spectrum bacteriostatic against a wide range of gram-negative bacteria. E Coli and S aureus are resistant. Consumed indiscriminately in the 1950s and 1960s. Effective against rickettsial and chlamydial infections. Causes tooth discoloration and stunted bone growth in children.