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- What would you expect to observe if you were able to “transplant” CreS into a rod-shaped bacterium such as Bacillus subtilis?Why is E. coli O157:H7 an organism of concern in contaminated foods? The strain is represented as O157:H7. Which particular “parts” of the bacterial cell do the “O” and “H” refer to?Are the bacteria pictured here Gram-positive, or Gram-negative?
- What specific essential nutrient is required by a particular species of bacteria to survive and reproduce, and how does the absence of this nutrient impact its growth and survival?Where/ How did the researchers find the bacterium, which they named Ideonella sakaiensis 201-F6? Apart from applications in recycling plastics and/or fermentation of PET products, why is this considered a remarkable finding?What is meant by the term "streptobacillus"? a-bacteria that are rods and arranged in grapelike clusters b-bacteria that are round and arranged in chains c-special bacteria that are spiral-shaped d-bacteria that are rods and in chains
- Why is it favorable for protozoa to replicate with schizogony versus using simple mitosis? what are the different scenarios that can occur with regards to bacterial growth within a thioglycolate tube? Explain why certain bacteria require one classification versus a different classification. A botanist has been using betaproteobacteria to grow his herb garden, because betaproteobacteria require little nutrients to grow. His garden does not grow successfully, so he comes to you for help to develop the herb garden. Which class of gram negative bacteria would you suggest and why? Why was the botanist’s original idea not going to work?Of these three genera of bacteria, which does not produce endospores: Clostridium, Mycobacterium, or Bacillus?What genus of bacteria is unable to survive in or on the human body?
- All of the following are possible configurations of bacteria EXCEPT? a-Monococcus b-Streptococcus c-Diplococcus d-LactobacillusAre “Bacillus cereus” and “Staphylococcus aureus” prokaryotes or eukaryotes?The unicellular, rod-shaped bacterium E. coli is~2 μm long and 0.8 μm wide, and has a genomeconsisting of a single 4.6 Mb circular DNA molecule. The unicellular archaean Methanosarcinaacetivorans is spherical (coccus-shaped) with adiameter of 3 μm and has a 5.7 Mb circular genome.The unicellular eukaryote Saccharomyces cerevisiaeis roughly spherical, with a diameter of 5–10 μm.It has a haploid genome of 12 Mb divided among16 linear chromosomes. Given these descriptions,how could you determine whether a new, uncharacterized microorganism was a bacterium, an archaean,or a eukaryote?