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Q: 1. Explain the regulation of microbial growth by turgor pressure.
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Q: How is microbial death defi ned?
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2 Gram positive pathogenic bacteria that may be classified as being facultative anaerobes?
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- 5 18 Listen Which of the following is NOT a chemical method of microbial control? a) refrigeration Ob) ethyl alcohol c) bleach d) phenol compounds21. Based on their shape and arrangement, identify the type of microbes.11. Gram-negative bacteria have a thick outer membrane and peptidoglycan layer. True or False.
- Which group of bacteria contains the gram-positive, anaerobic bacterium that causes botulism? (a) clostridia (b) actino-mycetes (c) enterobacteria (d) spirochetes (e) streptococci14. Other than bacteria list the other 6 types of Microorganisms listed in your textbook.asap1. Make a table to show the common characteristics used to group bacterial genera or species in the following groups and give one example of genus for each: (a) lactic acid bacteria, (b) coliforms, (c) proteolytic bacteria, (d) psychrotrophic bacteria, and (e) enteric pathogens.
- A group of bacteria are gram stained. They show up as pink. Which bacteria group is most likely present? |- cyanobacteria Il - gram-positive bacteria III- spirochaete IV - chlamydia O a) I and II O b) II Oc) I, III and IV O d) Il and II9. Is the eosin methylene blue agar (EMB) a complex or defined medium? Explain based on its composition. Is MSA a A) differential, B) selective, or C) both differential and selective media? Explain based on what kind of microorganisms it allows to grow.Explain 4 approaches to preventing or limiting biofilms.
- What might an infection by Gram-negative bacteriabe more difficult to treat than a Gram-positive bacterial infection?Identify at least 2 bacterial cell structures that are associated with virulence and pathogenicity. Explain each.11. Environmental factors critical for microbial growth includes all of the following EXCEPT, Group of answer choices Growth factors Osmosis and osmotic pressure Energy source ( light) pH Temperature 12. Identify a MISMATCH pair from the following, Group of answer choices whooping cough ( pertussis) :::: vector mediated transmission varicella ::: only herpes virus aerosole transmitted cockroaches :::: mechanical transmission vectors Hepatitis C :::: body fluid transmission anthrax :::: woolsorter’s disease pathogen; direct transmission
