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Scombroid Poisoning

What is scombroid poisoning? How does it occur? What conditions would allow the toxin involved to thrive and to cause illness. Scombroid poisoning is just another name for "histamine fish poisoning." (1) It is a "fish food poisoning" that is associated with allergy-like symptoms. (1) Scombroid poisoning is cause by a high l

Why are direct gram stains ordered on clinical specimens?

Gram Stain 1. Why are direct gram stains ordered on clinical specimens? 2. Why is a direct gram stain performed on all anaerobic cultures, even if it is not specifically ordered by the physician? 3. Why is a gram stain performed on all CSFs? 4. List (By gram stain morphology) the three most expected organisms

Koch's Postulates

As a skilled microbiologist, you have been called to Farmer McDonald's farm to investigate an outbreak of sores on the udders of his cows. Your first task is to determine whether the causative agent of the sores is a microbe. Explain how you will you use Koch's postulates to accomplish this.

Classification of Organisms

Assistance with the following multiple choice science questions. 1. Paleontologists have found fossils dating back 3.6 billion years. These closely resemble.. 2. The endosymbiont hypothesis suggests that the mitochondria of eukaryotic cells are descended from captured 3. Eukaryotic cells are thought to have... 4. Of

Differences and Similarities Between Bacteria and Fungi

Discuss the differences and similarities between bacteria and fungi. Include a comparison of size, cell type, reproduction, mode of deriving food, and good versus bad effects on other organisms and the environment. Be sure to give specific examples of good and bad bacteria and fungi including their scientific names.

Microorganism Growth

Please help with the following problem. You inoculate tubes of thioglycollate agar with a species of bacteria. There is no oxygen available in the bottom on the tube, while there is exposure to atmospheric concentrations of oxygen (~20%) at the very top of the tube. Describe, or draw, where in the tube you would expect the f

Microbiology Career Specialization

The science and practice of Microbiology impact on many facets of life and the functioning of the Earth. Microbiology also plays important roles in human affairs. As a testament to this, every spring, thousands of microbiologists gather for the Annual General Meeting of the American Society for Microbiology (ASM), which is the w

Microbiology - Mycoctic diseases

Please help address the following problems. 1- List the regions of the human body where mycotic diseases can be observed. 2- Explain why fungi are characterized as being either saprophytic or parasitic. How does the fungi benefit by being saprophytic or parasitic?

Bacterial/Viral infections

Please help answer the following questions. Provide at least 300 words in the solution. Bacterial or viral infections can cause a fever directly (from chemical messages produced by the infectious agent itself) or indirectly (from chemical messages produced by the immune system). How does the human body produce and respond to

microbiology: cause-and-effect flow sheet

Using the Internet to create a one-page cause-and-effect flow sheet. Your flow sheet should include the following: Various factors that lead to frequent outbreaks of the disease Stages of disease progression Clinical indicators of the disease

Biology Multiple Choice: Damaging effects of light and UV radiation. etc.

1. Which of the following statements about the damaging effects of light and UV radiation is NOT correct? a. Proteins of the photosynthesis apparatus may become damaged by radiation. b. Ozone prevents UV-A and UV-B radiation from reaching the surface of the Earth. c. Ultraviolet radiation may ionize important molecules like D

Tumor Antigens

Please explain the difference between a tumor antigen and a tumor marker. What are the two categories of tumor antigens? How are tumor markers used in diagnosis?

Microbiology Formation of Bacterial Endospores

Please help me answering the following questions; please give me enough explanation for each question, I will really appreciate it. The text book I am using is the following: Foundations in Microbiology (8th Ed.) Kathleen Park Talaro and Barry Chess. 5) Describe the formation of bacterial endospores. ?Describe the structure of

Microbiology case study.

You look in the refrigerator and find an orange drink you had forgotten was there. The drink now has an off-taste and it bubbles. What is the most likely explanation for the changes in the drink?

Microbiology Questions

- You have a rabbit with an unknown illness. Apply Koch's postulates to prove that a specific bacterial species is responsible for the rabbit's illness. Identify all four postulates in your answer and describe how you would set up experiments to specifically address each postulate. - List and describe 2 distinguishing feature

Microbiology inquiries are posed.

1.Why are immunocompromised hosts most likely to get eye infections caused by fungi? 2. What is the importance of running controls along with the experiments? 3. Compare and contrast the microbial destruction ability of moist vs. dry heat. Using Principle of destruction, procedure for destruction, thermal death time, appar

Microbiology Multiple Choice Questions

Please help with the following microbiology multiple choice problems. 1. Which of the following provides taxonomic information that includes the others? a. Nucleic acid hybridization b. Nucleic acid-base composition c. Amino acid sequencing d. Biochemical test e. Numerical identification 2. Which of the following

Overview of abiogenesis

What does abiogenesis refer to and who finally settled the spontaneous generation debate? List the roles of each of the following individuals in the development of microbiology: Koch, Pasteur, Lister, van Leeuwenhoek, Redi, Tyndall What is the major criterion for placing bacteria into groups? Which bacteria characteris

Compare and contrast two microorganisms - the virus and bacteria - graduate level

Compare and contrast two microorganisms- the virus and bacteria - in terms of the following processes. I need to state what is different and the same. Simply making side by side lists for the organisms without statements is not what I am trying to accomplish. a. Describe the basic chemical, molecular, and/or cellular mechan

Genetics, Microbiology, and Cell Biology

Please help me understand the attached questions. I've placed them here, but you should open up the attachment to see them formatted better. _________________________________________________ Multiple Choices: 1 point each (36 points total). Choose the single best answer for each of the following questions: 1. The accomplishme

ATP yield per glucose in eukaryotic vs prokaryotic cells

Please help with the following problem. The maximum yield of ATP per molecule of glucose in eukaryotic cells varies from 36 to 38 ATP. In prokaryotic cells, the maximum yield is 38 ATP. Explain why the maximum yield in eukaryotes varies, and why this is not an issue in prokaryotic cells

Microbiology Study Questions

51. Explain how capsules and cell wall components contribute to pathogenicity. 52. Discuss the causes of symptoms in fungal, protozoan, helminthic, and algal diseases. 53. Name the microbes that produce most of the antibiotics. 54. Identify five modes of action of antimicrobial drugs. 55. Describe inh

Microbiology Study Questions

21. Explain the purpose of Bergey's Manual and differentiate the types. 22. Describe how staining and biochemical tests are used to identify bacteria. 23. Differentiate between Western blotting and Southern blotting. 24. Explain how serological tests and phage typing can be used to identify an unknown organ