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
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
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.
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
Please provide a narrative/summary of "The Origin of Multicellular Life."
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.
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
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
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?
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
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
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
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?
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
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?
This posting clearly describes rhodopsin and signal transduction. It also cites references.
Deinococcus radiodurans is a bacterium that was isolated from cooling ponds in and around nuclear power plants. It is highly resistant to ionizing radiation. Propose a hypothesis to explain the high level of radiation resistance and an experiment to test your hypothesis.
Compare and contrast the prokaryotic and eukaryotic cells.
- 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
Describe two similarities and two differences between eukaryotic cells and prokaryotic cells. Why do you think eukaryotic cells developed? Describe how eukaryotic cells are similar to a production line.
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
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
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 - 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
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
A heterotrophic protist that is free-living and utilizes flagellum for locomotion would be classifies as ... ?
I need help crafting a short story about the differences between prokaryotes and eukaryotes: At least 2 differences. I need the differences in a story form (about a paragraph or two) to read to children that are 12 years old so they can clearly understand. Maybe with characters or something? Much appreciated.
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
Eukaryotic cells are more complex that prokaryotic cells. Describe briefly how eukaryotic cells might have evolved. Are there unicellular eukaryotic organisms on Earth today?
What are the differences between prokaryotic and eukaryotic cells? What are the differences between plant and animal cells