MCB 3020 Exam 1 answer key-1_LATEST,100% CORRECT

Document Content and Description Below

1. Which of the following processes are correctly matched to the source of energy that powers them? 2. Which of the following terms best describes a microbe that is found in chains of rod-like cell... s? 3. An antibiotic has been discovered that digests murein. It would best be used against which of the following types of pathogens? 4. Which of the following is/are true statements about the structures that provides directed movement in bacteria? . 5. Which of the following is/are characteristics of respiration in chemolithotrophs? 6. What is a likely environment to find an organism that has an absolute requirement of bacteriorhodopsins for growth? 7. Which of the following is the correct classification for an organism that uses preformed organic molecules as its source of carbon precursor metabolites and reduced inorganic molecules as its source of electrons? 8. Which of the following techniques would be used if a student needs to induce recombinant protein expression in a culture at a cell density of 106 cells/ml? 9. What is the likely reason that the use of superoxide dismutase and catalase/peroxidase became widespread in the prokaryotes during the evolution of organisms on earth? 10. Which of the following metabolic pathways is correctly matched to the products generated? 11. Which of the following is/are characteristics of N2 fixation? 12. Which of the following correctly match a prokaryotic cellular component with its function? 13. Which of the following differentiate respiring microbes from fermenting microbes? 14. Which of the following is/are characteristics of respiration? 15. Which of the following processes is/are used to make ATP by respiring bacteria? 16. Which of the following is/are characteristics of the membrane bound ATP synthase that uses a PMF to make ATP? 17. All forms of life run cellular metabolism using which of the following? 18. Which of the following correctly match the microbial structures with components found in that structure? 19. Which of the following is/are common components of a respiratory chain? 20. An antibiotic has been developed that disrupts the function of an endoflagella. For which of the following diseases should it be used? 21. Which of the following occur as electrons move from glucose to puruvate via glycolysis? Consider only direct results. 22. An antibiotic has been developed that disrupts the function of a capsule composed of amino acids. For which of the following diseases should it be used? 23. Which of the following processes is used to make ATP by fermenting bacteria? 24. A species of bacteria has a mutated SOD (superoxide dismutase) gene so that it only produces a low level of SOD activity. This mutant species is most likely now a 25. The Gram stain distinguishes microbes based on what cellular characteristic? 26. Which of the following correctly match staining techniques with the indicated dyes that might be used in that technique? 27. Which of the following methods best differentiates between the number of live and dead cells in a culture? 28. A strain of psychrophile has a mutation such that it can no longer produce functional hopanoids. At very cold temperatures which of the following is a correct prediction for this mutant stain? 29. How is the objective lens of a microscope able to magnify the images of a specimen? 30. A compound light microscope has a 100X objective lens and a 15X occular lens. The overall magnification of the image of a specimen is: 31. Which of the following is/are correct statements about simple positive staining procedures of microbes as described in this course? 32. Which of the following correctly match a microscopic technique with its particular use? 33. Which of the following correctly match a molecule with its role in the stated biochemical process/pathway? ( 34. Which of the following correctly match a prokaryotic cytoplasmic structure with a correct characteristic? [Show More]

Last updated: 2 years ago

Preview 1 out of 7 pages