39 Questions
Which type of microorganism is primarily responsible for the pickling of vegetables?
Leuconostoc species
Which characteristic of Actinomycetes is not mentioned in the text?
They are about 1.0-1.5 μm in diameter.
What is the primary industrial use of Rhizopus and Mucor, which are classified as Phycomycetes?
Production of enzymes
Which characteristic of industrial microbes is NOT mentioned in the text?
The organism should be able to produce large quantities of biomass.
Which fungal group is known for producing the antibiotic penicillin?
Fungi Imperfecti
What is the primary advantage of microorganisms over plants and animals for industrial applications?
Microorganisms are not affected by weather conditions
Which type of bacteria is responsible for the incomplete oxidation of alcohol to acetic acid?
Acetobacter
Which property of the Acetic Acid Bacteria allows them to thrive in acidic conditions?
They can stand acid conditions of pH 5.0 or lower
What is the difference in cell structure between Acetobacter and Gluconobacter, two Acetic Acid Bacteria?
Acetobacter are peritrichously flagellated, while Gluconobacter are polarly flagellated
Which of the following is NOT a key advantage of using microorganisms for industrial applications compared to plants and animals?
Microorganisms are subject to the vicissitudes of weather
What is the main function of ribosomes in cells?
Protein synthesis
Which statement is true about the cell walls of prokaryotic cells?
Lack glycopeptides
In which type of cells does the mitochondria play a role in respiration and energy release?
Eukaryotic cells
What distinguishes the DNA organization between prokaryotic and eukaryotic cells?
All DNA in one genome in prokaryotic cells
Which domain is not classified under the three domains of living organisms mentioned in the text?
Animals
Which of the following statements about lactic acid bacteria is correct?
They can be divided into homofermentative and heterofermentative groups based on their fermentation products.
Which of the following processes is NOT mentioned in the given text?
Production of ethanol from glucose
Which of the following statements about the Firmicutes phylum is correct?
The Firmicutes phylum contains both spore-forming and non-spore-forming bacteria.
Which of the following genera is NOT mentioned as belonging to the lactic acid bacteria group?
Bacillus
Which of the following statements about the Bacillus genus is correct?
Bacillus papilliae infects and kills the larvae of beetles.
What is the primary characteristic that distinguishes industrial microbiology from other fields of microbiology?
The motivation is profit and the generation of wealth through large-scale microbial processes.
Which of the following best describes the meaning of 'fermentation' in industrial microbiology?
All of the above meanings are correct within the context of industrial microbiology.
What is the typical scale of microorganism cultivation in industrial microbiology processes?
Microorganisms are cultivated in large-scale fermentors with volumes greater than or equal to 50,000 liters.
Which of the following is NOT a characteristic of industrial microbiology?
The focus is on understanding the biodiversity of microorganisms in natural environments.
Which of the following processes is NOT considered a type of fermentation in industrial microbiology?
The release of $CO_2$ gas during the respiration of aerobic microorganisms.
Which characteristic is most important for an industrial microorganism to maximize profits?
Ability to produce a consistent product with predictable properties
Which factor should be considered when choosing between two microorganisms for product recovery?
The ease of separating the microorganism from the culture medium
What advantage does a thermophilic microorganism have in an industrial fermentation process?
It can outcompete other microorganisms that may contaminate the process
Which statement best describes the importance of cell structure in industrial fermentations?
Cell structure can affect the ease of separating the microorganism from the culture medium
Which characteristic is most important when choosing a microorganism for the production of fermented foods?
Ability to produce a consistent product with predictable properties
Which characteristic of lactic acid bacteria is NOT mentioned in the text as desirable for industrial purposes?
Ability to grow under high pH conditions
What is a key advantage of lactic acid bacteria in industrial applications according to the text?
Production of stereo specific lactic acid
What distinguishes Actinobacteria from other Firmicutes according to the text?
Formation of hyphae
Which characteristic is crucial for the industrial importance of Pediococcus among the Actinobacteria mentioned in the text?
Special uses in certain water quality monitoring processes
What sets Lactococcus apart as an industrially important member among the Actinobacteria discussed in the text?
Special uses in yoghurt manufacture
How do lactic acid bacteria differ from Actinobacteria in terms of byproducts production as mentioned in the text?
Lactic acid bacteria produce negligible byproducts
Why are Actinobacteria considered Firmicutes with G+C content of 50% or higher according to the text?
High G+C content compared to other Firmicutes
What makes Streptococcus stand out among the Actinobacteria noted in the text?
Special uses in lambic beer production
Which condition is crucial for the growth of Actinobacteria as mentioned in the text?
Low pH and low temperature
Learn about the organizational set-up and production process in an industrial microbiology establishment, as well as the nature of cells in living systems such as prokaryotic and eukaryotic cells.
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