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Discussion
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Microbiology
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Sauerkraut and Pickles
See What Others Are Saying!
Question
Too long a fermentation of sauerkraut may favour the growth of
Options
A.
Lactobacillus lactis
B.
Lactobacillus brevis
C.
Bacillus subtilis
D. none of these
Correct Answer
Lactobacillus brevis
More questions
1. Which is most likely to be exposed on the surface of a gram-negative bacterium?
Options
A. Pore protein (porin)
B. Protein involved in energy generation
C. Lipoteichoic acid
D. Phospholipids
Show Answer
Scratch Pad
Discuss
Correct Answer: Pore protein (porin)
2. All of the following are features of prokaryotes except
Options
A. nitrogen fixation
B. photosynthesis
C. sexual reproduction
D. locomotion
Show Answer
Scratch Pad
Discuss
Correct Answer: sexual reproduction
3. High acid foods with a pH above 5.3 are especially subjected to
Options
A. flat sour spoilage
B. putrefaction
C. both (a) and (b)
D. TA spoilage
Show Answer
Scratch Pad
Discuss
Correct Answer: both (a) and (b)
4. The binomial name of a microbe is composed of
Options
A. its kingdom and genus names
B. its genus name and a species modifier
C. its family and class names
D. its genus and species names
Show Answer
Scratch Pad
Discuss
Correct Answer: its genus name and a species modifier
5. Induction of tolerance mechanism(s) is/are
Options
A. suppression
B. clonal deletion
C. clonal anergy
D. all of these
Show Answer
Scratch Pad
Discuss
Correct Answer: all of these
6. Why high concentration of sugars are not employed in the fermentation medium?
Options
A. Calcium lactate is not produced
B. Calcium lactate crystallizes from the medium and slows down the process of fermentation
C. High sugar concentration itself crystallizes
D. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: Calcium lactate crystallizes from the medium and slows down the process of fermentation
7. A cluster of polar flagella is called
Options
A. lophotrichous
B. amphitrichous
C. monotrichous
D. petritrichous
Show Answer
Scratch Pad
Discuss
Correct Answer: lophotrichous
8. Which of the following chemotherapeutic agents may affect the growth of
Campylobacter jejuni
?
Options
A. Vacomycin
B. Polymyxin
C. Trimethoprim
D. None of these
Show Answer
Scratch Pad
Discuss
Correct Answer: None of these
9. T-even phage binding to
E. coli
probably involves
Options
A. electrostatic interaction
B. hydrophobic interaction
C. covalent bonds
D. all of these
Show Answer
Scratch Pad
Discuss
Correct Answer: electrostatic interaction
10. Genetic variations are
Options
A. temporary
B. influenced by the environment
C. stable
D. not heritable
Show Answer
Scratch Pad
Discuss
Correct Answer: stable
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