Nanobacteria maintained in culture would generate a biofilm 2. It is based on two conflicting reports in the scientific literature on the status of nanobacteria as living organisms in order to explore basic concepts related to the biological definition of life and the process of scientific investigation. A recent example of this is thediscovery of nanobacteria. View in Fullscreen Report. E and F SEM micrographs of nanobacterial dwellings detached from the culture vessel. The scientific process can be complicated by the use of specialized language. What terms or concepts are new or unclear to you?

Are They or Aren’t They Alive? Nanobacteria have been isolated from withinhuman kidney stones, leading to the suggestion that these bacteria may be the cause of this disease. They isolated and cultured thenanobacteria in the same way and observed many of the same behaviors. Research Science — Natural history. What questions do you have? Manybacteria can cause diseases. The formation of inorganic crystalline structures in association with biological macromolecules.

Please see our usage guidelineswhich outline our policy concerning permissible reproduction of this work. Website supported by the University at Buffalo Libraries. Published by Guset User When these isolated caae were exposedto high energy, gamma radiation and then added to a culture container, it was observed that no growth orformation of a biofilm was observed. Report a Problem with this Resource Record. Consider the data from the work by Cisar et al. Decide whether you believe nanobacteria are alive or not!

nanobacteria case study answer key

When these stones were treated toslightly dissolve them, it was possible to isolate nanobacteria-like particles. Scientists conduct experiments in an attempt to answer specific questions. When purified phosphotidyl inositol a phospholipid common to biological membranes was added to the culture, biofilm formation occurred within two weeks.


Nanobacteria-Are they or Aren’t they Alive? by Farzana Abdulla Abdulla on Prezi

Scientific information is shared through publication in scientific journals. A recent example of this is thediscovery of nanobacteria. Propose an experiment to test one property nanobacferia life. Explain why you think this.

Nanobacteria: Are They or Aren’t They Alive? A Case

The case-study based activities include: It’s easy, fast, and FREE! Nanobacteria cultured under SF conditions and their interaction with cells.

nanobacteria case study answer key

It is not enough to simply suggest that someone else’s research is wrong. The inability to repeat results could arise from unknown variables quality of water, etc.

Electron and light microscopic images of nanobacteria-like particles scraped from DMEM-containing subcultures of nanobacheria.

Nanobacteria: Are They or Aren’t They Alive? A Case …

Scientific results are meaningless if they cannot be repeated and validated. A very important aspect of science is knowing how to interpret the results you get anzwer an experiment.

Answer Key Answer keys for the cases in our collection are password-protected and access to them is limited to paid subscribed instructors.

Research — Outlines, syllabi. The datapresented on Data Sheet 1 and Data Sheet 2 are excerpted from this article. Choose ONE property of life and propose a nqnobacteria you could test for thatproperty.

Read over the summary information presented above and examine the data. Explain your answer below.

nanobacteria case study answer key

This could be repeated for several months. The authors report that they were able to repeat this 1: Are They or Aren’t They Alive? Assignment for Part V: Which of the new results contradict Kajander and Ciftcioglu?



A key requirement in the process of scientific investigation is the repetition of experimental results byother scientists. These theories must either bemodified or abandoned when new evidence is made available that challenges our understanding. Teaching notes are intended to help teachers select and adopt a case.