ou isolated a new microorganism that has single cells and appear to lack a nucleus.Chemical analysis show the presence of both DNA and RNA in the cytoplasm and pseudomurein in the cell wall. In which of the following groups would the organism be classified?
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You isolated a new microorganism that has single cells and appear to lack a nucleus.Chemical analysis show the presence of both DNA and RNA in the cytoplasm and pseudomurein in the cell wall. In which of the following groups would the organism be classified?
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- If you visit a lake in the middle of the Amazon and take water samples to analyze under a microscope from a nearby university that has good instrumentation and there you detect microorganisms that are not visible to the naked eye. What studies would you do to determine if they are bacteria, archaea, fungi or protozoa? Explain each type of analysis and how would you rule out members of each group? Write at least 3 paragraphsIf you compared two motile bacterial species and determined one was considerably more motile than the other, which arrangement of flagella would you expect to be associated with the highly motile species? How would you confirm this?If you discovered a new type of nucleated cell in a lake near your home,how would you determine whether the cell was from a fungus, protozoan or a slime mold?
- Imagine you are looking at a sample of organisms from pond water . You see a single celled organism with flagella . The organism does not have a cell wall and has no chloroplasts ( but does have a nucleus ) . What category from the lab introduction would you classify this organism in ?Explain why a jar of jelly can be left open on the kitchen counter for prolonged periods of time, yet no mold or bacteria will grow on it?What type of micrograph is shown below? Is the organism pictured prokaryotic or eukaryotic? How can you tell?
- This organism belongs to which Class? What is structure A? This organism is a member of which Order?Which of the following statements is correct for archaea?(a) Archaea resemble eukaryotes in all respects.(b) Archaea have some novel features that are absent inother prokaryotes and eukaryotes.(c) Archaea completely differ from both prokaryotes andeukaryotes.(d) Archaea completely differ from prokaryotes Please try to break the solutions into as many steps as practically possible and the steps should come one by one and they should be short and crisp and plagiarism-free.Suppose that one of Pasteur's swan neck flasks had broken, such that the neck came off. What would be the likely result? Maggots would have appeared on the meat The broth would have remained sterile Bacteria would not have been isolated in pure culture The animalcules would have escaped The liquid would have become contaminated You have a mixture of bacteria, archaea, fungi, protists, and algae. Which of the following would be most definitive in determining which of these cells are archaea? Size in a bright field microscope Structure in a scanning electron microscope Fluorescence in situ hybridization Super resolution microscopy Simple staining
- All of the following are characteristics of the bacterial flagellum except: Select one: a. It has a hook-like insertion to a basal body in the cell wall. b. It is composed of protein c. It is used in conjugation d. Counterclockwise rotation moves bacteria forward All the following are characteristics of prokaryotes except: Select one: a. Prokaryotes have cell wall b. Prokaryotes have ribosomes c . Prokaryotes have organelles d. Prokaryotes lack a nucleus e. Prokaryotes have genesFor instance, you encountered an unusual one-celled organism, what part/s of its cell would you use as reference to classify it under the three domains, specifically if this single-celled organism is an Archaean, Bacteria, or Protist?Which of the following are TRUE of yeast? Yeast are Gram-positive cells.Yeast are Gram-positive cells. Yeast are Gram-negative cells.Yeast are Gram-negative cells. Yeast are neither Gram-positive or Gram-negative cells.Yeast are neither Gram-positive or Gram-negative cells. Yeast have a peptidoglycan cell wall.Yeast have a peptidoglycan cell wall. Yeast do not have a cell wall.