Unit2

1. This assignment consists of traveling to the sites listed above and writing a brief paragraph about your visit to that site, and then answering some questions after you have looked over the chapters in the text and in resources for Unit 2.  http://www.cellsalive.com/toc.htm#microbiol

2. Assume you are looking under the microscope at a Gram-stained slide of an open wound, and you see large red rod shaped cells, and smaller blue violet round cells. What is your explanation for the red and blue cells?

3. Explain the gram stain, and what does the gram stain tell you about the anatomical differences in cells? What information is gained from this staining technique, and how could that information affect an ill patient?

Here is the Link to "Cells Alive!  http://www.cellsalive.com/toc.htm#microbiol

You will need to look at :Cell Biology; and then at "How big is a" .....; and "Cell models"  as well as "dividing bacteria", and "bacterial motility"  There is a good discussion here on prokaryotes, and eukaryotes. You will see references to comparisons between prokaryotes and eukaryotes, it is important to distinguish between the two, and it will be easier to do once we look closely at the information in chapter 5.

1. A functional cell could be built with a single chromosome, cytoplasm,a cell membrane, and ribosomes.Why are these four components absolutely necessary to the functional cell? If these structures are all a cell needs, why do most cells have many more structures?

 2. Your 6th grader has read an article at school about life on other planets, and your child volunteered you to talk to the class about prokaryotes and your opinion on whether there can be microbial life on other planets. In light of what you have learned from this chapter, develop an intelligent response for your to present to your child's class.  (yes, this is an actual question, and base your response on the reading from this chapter and the website and any other choices you wish to use!)

3. Why is bacterial Capsule medically important? Do you find capsules in eukaryotic cells? Why or why not?

 

 

 

Unit 3 chapter 3 and 5:

•1. A facultative anaerobe utilizes glucose either by fermentation or by respiration. If more ATP is generated through respiration, why is the rate of glucose consumption less when the microbe uses respiration than when it uses fermentation? .

2. What does a cell need to produce energy?

•3. Explain how competitive and noncompetive inhibitors work. .

•4. Define growth, and list the requirements for various organisms to "grow". .

•5. Explain how a particular microbe responds to efforts to control its growth.

 

1. choose a microbe, 2. then research what environmental and O2 requirements are necessary for your microbe to grow. 3. What are the necessary growth factors for your particular microbe, and 4.how you could influence its ability to grow by this knowledge.

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