Lab 9 biology 156 List the two domains that contain prokaryotic cells

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  1. List the two domains that contain prokaryotic cells. (2 points)
  2. List two beneficial uses of bacteria. (2 points)
  3. List two human diseases caused by bacteria. (2 points)
  4. What is the purpose of fixing the smear? (4 points)
  5. Describe the two methods of fixing a smear. (4 points)
  6. Describe an advantage of viewing an unstained specimen. (4 points)
  7. List three stains that are used in simple staining procedures. (6 points)
  8. When are negative stains used? (4 points)
  9. How many stains are used in differential staining procedures? (5 points)
  10. Your laboratory partner accidentally used distilled water to decolorize your specimen instead of alcohol during the Gram-staining technique. (6 points)
    1. What is the color of your Gram negative bacterium after the staining procedure is complete?
    2. What is the color of your Gram positive bacterium after the staining procedure is complete?
  11. What is the name for the staining procedure seen below? Note: be specific. (4 points)

procedure diagram 18 Wistreich

  1. Why should Gram stain not be used to stain acid-fast organisms? (5 points)
  2. List two acid-fast organisms and the respective diseases they cause. (4 points)
  3. What is the morphology (shape) of the following bacteria? (5 points)

  1. Name five common arrangements of cocci. (5 points)
  2. Name two common arrangements of bacilli. (3 points)
  3. Name three common arrangements of spirilla. (3 points)
  4. Identify the morphology (shape), arrangement, and Gram stain reaction of the following organism. (6 points)

  1. Morphology
  2. Arrangement
  3. Gram reaction
  1. Identify the morphology (shape), arrangement, and Gram stain reaction of the following organism. (6 points)

  1. Morphology
  2. Arrangement
  3. Gram reaction
  1. (Application) How might the information gained from this lab pertaining to microbiology be useful to you in your everyday life or to a healthcare professional? (20 points)
  2. Key components of critical thinking and application include the following:

    1. Demonstrates application and comprehension of the scientific principles.
    2. Displays competence in applying scientific knowledge to your personal or professional life.
    3. Relevant content is supported by facts, data, and detailed examples.
    4. The application paragraph is organized and structured.

Tutor Answer

MohamedAbdo
School: Duke University

here are the complete answers marked in red and next time but a good camera please. lol

1. List the two domains that contain prokaryotic cells. (2 points)
1. archea
2. bacteria
2. List two beneficial uses of bacteria. (2 points)
1. Genetic investigation
2. Carrier for transferring of genes
3. List two human diseases caused by bacteria. (2 points)
1. Staph infection
2. Strep infection
4. What is the purpose of fixing the smear? (4 points)

The specimen must be properly applied in order to get a useable visual and
also we heat fix the bacteria to kill it and make it adhere to the slide
5. Describe the two methods of fixing a smear. (4 points)
1. Chemicals such as acetone.
2. A short duration of heat.
6. Describe an advantage of viewing an unstained specimen. (4 points)

We will be able to see more natural characteristics of the living specimen.
7. List three stains that are used in simple staining procedures. (6 points)
1. Acid-fast stain
2. Gram stain
3. Primary stain
8....

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Anonymous
Top quality work from this guy! I'll be back!

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