secondmicrotest3

last night i downloaded a lot of music. man, i really love these days where i spent hours on pandora, or youtube or purevolume and just find new artists/bands

and just really get into it. like, i'm so happy i came across this account on youtube that plays artists that are similar to nujabes, and tokimonsta. i lo

Created by: sarah
  1. which microorganisms include species associated with red tides?
  2. which microorganisms include species associated with red tides?
  3. neurotoxins that cause paralytic shellfsh poisoning are produced by:
  4. which of the following is common in hawaii?
  5. the bacterial enzyme streptokinase is used to digest fibrin ( blood clots) in patients with atherosclerosis. How do we know the sterptokinase will digest firbin only and not only good tissues? why is this enzyme, like most enzymes active at one particular temperature? what happens above and below this temperature?
  6. you have two flasks with broth media. one contains a species of cyanobacteria, which is a photosynthetic bacteria. the other flasks contains escherichia, coli. both flasks are sealed and incubated under optimal growth conditions for two days. assuming the cell volume and metabolic rate of the bacteiral cells is identical in each flasks, why would the carbon dioxide concentration be higher in the e. coli flask than in the cyanobacteria flask after the two-day incubation?
  7. assume that you are working for a chemical company and you are responsible for growing a yeast culture that produces ethyl alcohol. the yeasts are growing well on the maltose medium but are not producing alcohol. what is the most likely explanation?
  8. explain how rotenone is effective in common posion due to its ability to block electron transfer in complex 1 of the electron transport chain.
  9. a man is brought to the hospital after a large meal, due to his bizzare behavior, disorientation and somnolence. the physician notices a fruity odor on his breath. his blood tests indicate elevated blood ethanol levels. however, he denies having had any alcoholic beverages. what could be a posisble explanation for these circumstances?
  10. a population of bacillus species is growing in a soil sample. suppose glycolysis came to a halt in these bacterial cells. woud this mean that the krebs cycle would also stop? why/why not?
  11. fermentation is used as a means of preserving foods. why would it slow spoilage?
  12. if two cultures of a facultative anaerobe were grown under identical conditions except that one was exposed to oxgen and the other was completely deprived of oxygen, what differences would you expect to see between the two cultures?
  13. consumers are advised to avoid stuffing a turkey the night before cooking, even though the turkey is refrigerated.
  14. you are an EMT and are called to the home of kevin a baby who has become listless and is having trouble breathing. his eyes are open, but not focusing. he hasnt had a bowel movement in three days. whats your suspision based on what seem to be nervous sysytem symptoms? what should be administered to kevin at the earliest opportunity? how do babies acquire this condition? although this diagnosis should be confirmed with lab tests ,the test should probably not be performed in the hospital lab. why?
  15. public health officials found that the water in a midwestern town was contaminated with sewage bacteria. the officials suggested that homeowners boil their water for a couple of minutes before drinking it. would this treatment sterilize the water? why? is it important that the water be sterile? explain
  16. if pasteur's swan necked flask had contained endospores, what results would have been observed?
  17. 1. Botulism was first described as a clinical disease in the early 1800's, when it was known as the sausage disease. Blood sausage was made by filling a pig stomach with blood and ground meats, tying shut all the openings, boiling it for a short time, and smoking it over a wood fire. The sausage was then stored at room temperature." How did this attempt at food preservation include most of the requirements for an outbreak of botulism?
  18. 1. In June 1995, a crew of five workers began a partial demolition of an abandoned city hall building in a Kentucky community. Three weeks later, all five required treatment for acute respiratory illness, and three were hospitalized. Cells obtained from the patients by lung biopsy revealed oval bodies. When the construction site was inspected, epidemiologists found an accumulation of bat droppings, and neighbors said they had seen bats in the area in recent weeks. What disease is this? What is the causative agent (pathogen)? What were the oval bodies seen from the lung biopsy?
  19. 2. All of the following groups of algae produce substances that are toxic to humans EXCEPT:
  20. 3. A 63-year-old international telecommunications executive visits your office with complaints of a high fever. The fever is not constant, but intermittent. When you press him for details he estimates that every three days or so he suffers these debilitating "sweats". He usually has headaches and muscle aches during the episodes. They keep him home from work. After half a day or so he feels better. He reports that he has experienced these episodes for about two months. What is the name of the condition you suspect? What is the causative organism? Is this pathogen eukaryotic or prokaryotic? What should be your first question about the patient's history? What are the two main places in the human body that are exploited by the causative organism in this disease? Can this individual transmit this infection to others? Why or why not? How should this patient be treated?

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