BMS 503 (Microbiology) Study Guide #2
BMS 503 (Microbiology) Study Guide #2 BMS 503-7
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This 4 page Study Guide was uploaded by Darian Tilton on Tuesday October 11, 2016. The Study Guide belongs to BMS 503-7 at University of New Hampshire taught by Dr Timothy Montminy in Fall 2016. Since its upload, it has received 21 views. For similar materials see Microbiology in Biomedical Sciences at University of New Hampshire.
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Date Created: 10/11/16
BMS 503 (Microbiology) Study Guide #2 1. Bacteria that are able to survive in humans (at human body temperature) are known as: a. Hyperthermophiles b. Psychrophiles c. Mesophiles d. Hyperthermophiles 2. D period is the stage of the cell cycle where: a. DNA replication occurs, DNA polymerase can replicate b. Binary fission occurs, cell divides c. Cell increases in size and mass d. Cell dies 3. The stage in the growth cycle of batch culture where there is the largest increase in number of cells is called the ________ phase a. Decline/Death b. Stationary c. Lag d. Exponential 4. True or False: every base in a DNA sequence is converted into proteins T or F 5. On which site of DNA do transcriptional regulators bind? a. Minor groove b. Major groove c. Histone complex d. Active site 6. What happens to a cell if the lac operon promoter is damaged? 7. What is the ideal pH for alkaliphiles? 8. What is the correct way to write the name of a gene? a. LACZ b. LacZ c. lacZ d. Lacz 9. What happens to an enzyme if the pH is too high or too low in a cell? 10. What is an obligate aerobe? 11. What regulates the synthesis of βgalactosidase? a. Transduction b. Translation c. Induction and catabolite repression d. Active site 12. At what stage in the batch culture growth cycle is the number of viable cells equal to the number of dead cells? a. Decline b. Stationary c. Exponential d. Lag 13.What causes a batch culture to switch from the exponential stage to the stationary stage? 14. I am growing a culture of E coli, I initially start with 50 bacteria in my culture. I then let them grow for three hours. If the generation time for E coli is 20 minutes, how many bacteria will I have at the end of the 3 hours? 15. In a chemostat, what is the most effective way to increase the number of bacteria that will be produced? a. Increase the pH b. Increase the temperature c. Increase the concentration of nutrients d. Decrease the temperature 16.What happens to a cell during C period? 17.What is the purpose of a thioglycollate broth? 18. What is an aerotolerant anaerobe? 19.Describe the efficiency of a cell’s growth rate if the optimal temperature is exceeded 20. What is the central dogma?
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