Microbiology: An Introduction
12th Edition
ISBN: 9780321929150
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case
Publisher: PEARSON
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Chapter 10, Problem 3A
SF medium is a selective medium, developed in the 1940s, to test for fecal contamination of milk and water. Only certain gram-positive cocci can grow in this medium. Why is it named SF? Using this medium, which genus will you culture? (Hint: Refer to page 270.)
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Chapter 10 Solutions
Microbiology: An Introduction
Ch. 10 - Which of the following organisms are most closely...Ch. 10 - Here is some additional information on the...Ch. 10 - DRAW IT Use the additional information below to...Ch. 10 - DRAW IT Use the information in the table below to...Ch. 10 - NAME IT Use the key in the Applications of...Ch. 10 - Sergeys Manual of Systematic Bactenoiogy differs...Ch. 10 - Bacillus and Lactobacillus are not in the same...Ch. 10 - Prob. 3MCQCh. 10 - Which of the following is false about scientific...Ch. 10 - You could identify an unknown bacterium by all of...
Ch. 10 - The wall-less mycoplasmas are considered to be...Ch. 10 - Use the following choices to answer questions 7...Ch. 10 - Prob. 8MCQCh. 10 - Prob. 9MCQCh. 10 - Use the following choices to answer questions 9...Ch. 10 - The GC content of Micrococcus is 66-75 moles %,...Ch. 10 - Describe the use of a DNA probe and PCR for: a....Ch. 10 - SF medium is a selective medium, developed in the...Ch. 10 - Prob. 1CAECh. 10 - Prob. 2CAECh. 10 - Prob. 3CAE
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- The Gram staining technique is useful to classify Bacteria. Can the technique be applied to Archaea? Discuss briefly.arrow_forwardWhat would we expect to see from the gram stain for Staphylococcus vs. Streptococcusarrow_forwardWhy is it important to follow sterile technique? What can happen to cause gram-positive bacteria to appear gram-negative?arrow_forward
- Would this bacteria be classified as gram negative or gram positive? Describe the shape and arrangement of the bacteria.arrow_forwardIf a scientist were trying to separate Klebsiella, Proteus, Shigella, and Vibrio into two separate categories, with two genera in each category, what is a characteristic they could use? Morphology Gram-reaction Oxygen requirement Motility Arrangementarrow_forwardWhich 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.arrow_forward
- What is the process to perform a Gram Stain? What happens if you make a mistake on a step (Think about different mistakes you could make)? What are the proper results? What structures do Archaeans use to attach to surfaces (Look like treble hooks)? What are bacterial inclusions? What are the similarities and differences in Gram - cells and Gram + cell structure? What is the function of ribosomes and what are they mad up of? What component of bacterial cells helps to combat/regulate osmotic forces? What are Koch’s postulates? What are they used for? Explain the process of endospore formation in endospore-producing organisms. What are the major components of the bacterial & eukaryotic cell? What is/are a pilus/pili and what do microbes use them for? What is the prokaryotic flagellum made up of?arrow_forwardWhat is meant by the term “staphylococcus”? Bacteria that are round and arranged in clusters Bacteria that are round and arranged in chains Special bacteria that are spiral-shaped Bacteria that are rod-shaped and found in groupsarrow_forwardBased on the dichotomous key that is shown below.. which among the Gram positive bacteria is not characterized properly? - Micrococcus - Streptococcus - Enterococcusarrow_forward
- Using a microscope, how could you distinguish the cocci that cause staph infections from those that cause strep throat?arrow_forwardWhat do you call this type of bacterium? How is it structurally different from a spirillum?arrow_forwardWhy do you suppose endospore-forming bacteria are commonly found in the soil? Suppose your unknown bacteria is a Gram-negative rod. You decide to perform an endospore stain, thinking it will help you with the identification of the organism. What will you see, and why?arrow_forward
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