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Predict the effect of oxygen concentration on the growth of the five different types of microorganism groups (e.g. obligate aerobes, etc. )

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Casey Durgan
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25 Aug 2019

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Related questions

.1. discuss the four toxic forms of oxygen, how to detoxify them,why they are dangerous to cells, even ours.

2. Presence or absence of oxygen detoxifying genes and whichmetabolic pathway to produce ATP is directly related to whethermicroorganisms are considered obligate aerobes, obligate anaerobes,facultative anaerobes, aerotolerant anaerobes, or microaerophiles.Could you make a chart to explain this phenomenom
?
3. Some microbes can nitrogen fix and some can carbon fix which isa definite advantage. Why?

4. Mineral, are trace elements, and vitamins, are growth factors,are required in small amounts for many microbes.

5. Optimum growth temperatures, pH range, osmotic pressure alleffect growth how?

6. psychrophiles, mesophiles, thermophiles, hyperthermophiles รขย€ย“ allrefer to?

7. What are quorum sensing and biofilms?

10 what is the generation time>
11. Estimate population size by direct and indirect methods.

Chapter 7: Microbial Nutrition, Ecology, andGrowth.


Please be sure to include 2 days of posting forthis chapter.

Select one of the following and discuss:

  • Types of nutrients (essential, micro, macro and traceelements)
  • Carbon-based nutrition types: heterotroph, autotroph,phototroph, chemotrophs
  • Chemical analysis of cell contents
  • Methanogens
  • Saprobic microbes
  • Parasitic microbes
  • Diffusion vs. Osmosis
  • Facilitated diffusion
  • Temperatures: psychrophile, mesophile, thermophile
  • Gas requirements: obligate aerobes (give examples)
  • Gas requirements: obligate anaerobes (give examples)
  • Gas requirements: facultative anaerobes (give examples)
  • Microaerophiles vs. aerotolerant anaerobes
  • Capnophiles
  • pH: neutrophiles, acidophiles and alkalinophiles
  • Osmotic pressure: halophiles and osmotolerant
  • Barophiles
  • Relationships: symbiosis
  • Relationships: mutualism
  • Relationships: commensalism
  • Synergism and antagonism
  • Interactions between microbes and humans
  • Biofilms--quorum sensing
  • Basis of population growth: binary fission
  • Generation time-exponential
  • Steps of Growth curve (visual on page 210)
  • Other methods to analyze population growth (direct count,automated counters, turbidity)

Please change the subject line to the topic you picked,we can avoid similar topics this way.

If two chapters are being discussed: the first post is due byMonday at 11:59pm and the second chapter is due by Wednesday at11:59pm. Each original post for the individual chapters MUST beposted on different days. Any replies can be made on the same dayas an original post but you are required to complete four separatedays of posting (not four posts in one day). When two chapters arebeing discussed you should post 2 times for each chapter for atotal of 4 posts. Posts done on topics already discussed will notbe given credit. Please read through the entire discussion boardbefore choosing a topic to post on.

Need help developing a hypothesis and experiment based on a relationship to oxygen to growth lab (basic micro lab using thioglycollate, tsa agar plate and anaerobe boxes/gas packs as media and four cultures including Pseudomonas fluorescens, clostridium butyricum, Staphylococcus aureus, and enterococcus faecalis) determining which are obligate aerobs, obligate anerobes, facultative anaerobes, and aerotolerant. I need to design an experiment with hypothesis, controlled variable, independent variable, and dependent variable. Please help--thank you!Need help developing a hypothesis and experiment based on a relationship to oxygen to growth lab (basic micro lab using thioglycollate, tsa agar plate and anaerobe boxes/gas packs as media and four cultures including Pseudomonas fluorescens, clostridium butyricum, Staphylococcus aureus, and enterococcus faecalis) determining which are obligate aerobs, obligate anerobes, facultative anaerobes, and aerotolerant. I need to design an experiment with hypothesis, controlled variable, independent variable, and dependent variable. Please help--thank you!

Oxygen Lab worksheet

What is a hypothesis that can be developed using data collected from this experiment?

Provide a brief description of an experiment that can be performed to test that hypothesis.

In your proposed experiment, provide at least one example of each of the following variables:

Controlled variable

Independent variable

Dependent variable

What useful or applied information can be gathered from this type of experiment?

That is, what is a real-world application of this information?

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