Prescott's Microbiology
11th Edition
ISBN: 9781260409062
Author: WILLEY, Joanne
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 4, Problem 1AL
Compare, Hypothesize, Invent
1. Archaea with cell walls consisting of a thick, homogeneous layer of complex polysaccharides often retain crystal violet dye when stained using the
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Chapter 4 Solutions
Prescott's Microbiology
Ch. 4.1 - Retrieve, Infer, Apply 1. Which cell shapes are...Ch. 4.1 - Retrieve, Infer, Apply 2. Archaea was first...Ch. 4.2 - MICRO INQUIRY How is pseudomurein similar to...Ch. 4.2 - Retrieve, Infer, Apply 1. Identify three features...Ch. 4.2 - Prob. 2CCCh. 4.3 - Thus far, homologues of intermediate filaments...Ch. 4.3 - Retrieve, Infer, Apply 2. Archaea are often...Ch. 4.4 - Retrieve, Infer, Apply 2. What observations about...Ch. 4.4 - Retrieve, Infer, Apply 3. List three aspects of...Ch. 4.4 - Prob. 3CC
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- .Answer the following question briefly but concisely 1. What aspect of a cell's physical makeup increases gradually as it gets smaller? 2. How could Bacteria and Archaea's tiny size and haploid genome hasten their evolution? 3. How small a cell can get? Justify. 4. If a bacterial cell was enclosed in a capsule, could it do without a cell wall? Why, or why not? 5. Why can gram-negative sulfur-oxidizing chemolithotrophs store sulfur but gram-positive bacteria cannot?arrow_forwardExplain the importance of describing the morphological characteristics of bacterial colonies when cultures were sample from an environmental source? Explain and support your pointarrow_forward1. Why is it important to use a small amount of bacteria when making a smear? Give at least 2 reasons. 2. What are the two reasons for “fixing” a smear? 3. Simple staining is useful for determining what three characteristics of a bacterial cell? 4. With respect to bacteria, define morphological arrangement. Explain thoroughly!arrow_forward
- Ana wants to engineer a super archaea which can survive and thrive in extremely hot and hypersaline water. What characteristics should she use to achieve the organism? Provide at least 3 and justify your answer.arrow_forwardDescribe the term nanoporesarrow_forwardMICROBE PROFILING Instructions: Choose any microorganism from the different groups of cellular and acellular and fill in the information required for your chosen microbe for profiling. 1. Scientific Name and common name of the microbe: 2. Importance: 3. Cellular or Acellular? 4. If cellular, eukaryote or Prokaryote? 5. If cellular, which Kingdom? 6. General Morphology (describe cell types, parts of cells, size, etc.): 7. Where are they commonly found? 8. Source of nutrition: 10. Does it cause human infection? (Yes or No); What disease? 11. If they cause diseases, how can we prevent the infection? 12. Representative photo 13. References:arrow_forward
- Give typing answer with explanation and conclusion The antibiotic bacitracin binds to bactoprenol after it inserts a peptidoglycan monomer into a bacterial cell wall. Explain why this would lead to the death of the bacterium. 2. Penicillin antibiotics bind the bacterial enzyme transpeptidase. Explain why this would lead to the death of the bacterium. 3. Could either of the above antibiotics be used to treat protozoan infections such as giardiasis & toxoplasmosis? Why/Why notarrow_forwardMicrobiology Why are mycobacterium (mycobacterium sp) harder to control than other bacteria?arrow_forwardTopic 1: Gram staining principle a. Describe the structure of peptidoglycan b. Describe in detail the architecture and structure of Gram negative cell wall structure c. Discuss how Gram positive cell wall is different from Gram negative wall structure. d. What are teichoic acid and their location? Provide the role of the teichoic acid in bacterial cells.arrow_forward
- Archaea contains? Choose the right answer: a. A nucleus with a virus cell b. A group of spine animals. c. Cells with a nucleus. d. A group of one-celled organisms with no nucleus in their cells.arrow_forwardBiology 1. A pH of 9 indicates the solution is basic, or consists of a higher concentration of hydroxide ions compared to hydrogen or hydronium ions. This reading would be expected of substances like soap and stomach contents, which is why organisms have a difficult time surviving in those environments. True or false 2. A Gram-negative bacillus bacteria that is stained using Crystal violet and iodine, only, will show a_______________ color and _____________ shape under the microscope, when viewed.arrow_forwardPlease answer fast why are gram-negative bacteria unevenly distributed on a slide? Why are gram negative bacteria unevenly distributed in an liquid environment.arrow_forward
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