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Commercial sterilization of canned foods is intended to destroy the endospores of which bacterial species?
refully and thoroughly. Question 30 Which of the following is most easy to destroy? Bacterial endospores...
refully and thoroughly. Question 30 Which of the following is most easy to destroy? Bacterial endospores Staphylococcus and pseudomonas Most bacteria Enveloped viruses Fungi and fungal spores « Previous
Question on Steam Sterilization. Why are bacterial endospores placed on the paper strip and not directly...
Question on Steam Sterilization. Why are bacterial endospores placed on the paper strip and not directly in the fermentation broth?
Which of the following are destroyed by alcohol? Check All That Apply Bacterial endospores Enveloped viruses...
Which of the following are destroyed by alcohol? Check All That Apply Bacterial endospores Enveloped viruses Vegetative bacterial cells Prions
If one bacterial species is removed from an ecosystem, sometimes another species which performs a...
If one bacterial species is removed from an ecosystem, sometimes another species which performs a similar ecological role can take its place by carrying out the same function. What is the ecological term to describe this phenomenon?
Which of the following statements about Archaean species and Bacterial species is true? Only one has...
Which of the following statements about Archaean species and Bacterial species is true? Only one has a prokaryotic cell type. Members of these two domains have a similar membrane structure. Members of both domains lack membrane-bound organelles. Both domains include methanogens. Both have their DNA packaged into nuclei.
Utganic acid food preser the PL preservatives (such as benzoic acid) inhibit bacterial growth because ih...
Utganic acid food preser the PL preservatives (such as benzoic acid) inhibit bacterial growth because ih pH is restored to neutral 6. the hypertonie en c. The enzyme d. benzoic acid ettonie environment causes cells to dehydrate and stop replicating cytes involved in fenentation are inhibited 1c acid cannot be used as a carbon source 18 an accumulation of superoxide radicals that damage the cells c. there is an accum 35. All of the follow most difficult to destroy? the...
If a bacterial species is positive in nitrate reduction test, which one of the following best...
If a bacterial species is positive in nitrate reduction test, which one of the following best describes this bacterium? Select one: O a. It can convert nitrite or nitrogen gas to nitrate in an aerobic respiration process. b. It can convert nitrite or nitrogen gas to nitrate in a lactose fermentation process. c. It can transfer electrons to nitrate in an anaerobic respiration process. O d. It can transfer electrons from nitrate to glucose in a fermentation process,
3. Based on your results, determine which enzymes each bacterial species has and whether or not...
3. Based on your results, determine which enzymes each bacterial species has and whether or not there is evidence for pathogenicity. Bacteria Catalase + Hemolysis (alpha, beta, Coagulase Evidence for pathogenicity Catalase - Enterococcus faecalis gamma | ΝΑ Staphylococcus aureus beta Streptococcus oralis NA Bacillus subtilis Alpha grayish Colonies gamma NA Escherichia coli NA Beta Haemophilus haemolyticus NA NA
. Question 18 (1 point) Which molecule is used to test similarities between bacterial species? ajili...
. Question 18 (1 point) Which molecule is used to test similarities between bacterial species? ajili ODNA mRNA ORNA OrRNA Question 19 (1 point) Which is the best way to isolate soil bacteria? Using solid media in diffusion chambers Using liquid media in shaker flasks Using liquid media in tubes Using solid media on Petri dishes Question 15 (1 point) In real-time PCR, Cq is dependent on O Amount of DNA template in the sample Quality of DNA template in...
Consider an important protein like beta-galactosidase, which breaks down lactose. Many bacterial species have beta-galactosidase. But...
Consider an important protein like beta-galactosidase, which breaks down lactose. Many bacterial species have beta-galactosidase. But that doesn't mean that the amino acid sequence of beta- galactosidase in all those bacterial species is exactly the same. Far from it. As bacteria diversified into different species over evolutionary time, beta-galactosidase encoded in the genomes of the bacteria also diversified. However, we can assume that even though beta-galactosidase diversified, it was under pressure to maintain structure and function, because the reaction it...
refully and thoroughly. Question 30 Which of the following is most easy to destroy? Bacterial endospores Staphylococcus and pseudomonas Most bacteria Enveloped viruses Fungi and fungal spores « Previous
Which of the following are destroyed by alcohol? Check All That Apply Bacterial endospores Enveloped viruses Vegetative bacterial cells Prions
Utganic acid food preser the PL preservatives (such as benzoic acid) inhibit bacterial growth because ih pH is restored to neutral 6. the hypertonie en c. The enzyme d. benzoic acid ettonie environment causes cells to dehydrate and stop replicating cytes involved in fenentation are inhibited 1c acid cannot be used as a carbon source 18 an accumulation of superoxide radicals that damage the cells c. there is an accum 35. All of the follow most difficult to destroy? the...
If a bacterial species is positive in nitrate reduction test, which one of the following best describes this bacterium? Select one: O a. It can convert nitrite or nitrogen gas to nitrate in an aerobic respiration process. b. It can convert nitrite or nitrogen gas to nitrate in a lactose fermentation process. c. It can transfer electrons to nitrate in an anaerobic respiration process. O d. It can transfer electrons from nitrate to glucose in a fermentation process,
3. Based on your results, determine which enzymes each bacterial species has and whether or not there is evidence for pathogenicity. Bacteria Catalase + Hemolysis (alpha, beta, Coagulase Evidence for pathogenicity Catalase - Enterococcus faecalis gamma | ΝΑ Staphylococcus aureus beta Streptococcus oralis NA Bacillus subtilis Alpha grayish Colonies gamma NA Escherichia coli NA Beta Haemophilus haemolyticus NA NA
. Question 18 (1 point) Which molecule is used to test similarities between bacterial species? ajili ODNA mRNA ORNA OrRNA Question 19 (1 point) Which is the best way to isolate soil bacteria? Using solid media in diffusion chambers Using liquid media in shaker flasks Using liquid media in tubes Using solid media on Petri dishes Question 15 (1 point) In real-time PCR, Cq is dependent on O Amount of DNA template in the sample Quality of DNA template in...
Consider an important protein like beta-galactosidase, which breaks down lactose. Many bacterial species have beta-galactosidase. But that doesn't mean that the amino acid sequence of beta- galactosidase in all those bacterial species is exactly the same. Far from it. As bacteria diversified into different species over evolutionary time, beta-galactosidase encoded in the genomes of the bacteria also diversified. However, we can assume that even though beta-galactosidase diversified, it was under pressure to maintain structure and function, because the reaction it...
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