BIOS 242 Microbiology Week 2 Quiz (2 Versions, Latest-2022) / BIOS242 Week 2 Quiz / BIOS 242 Week 2 Quiz: Microbiology: Chamberlain College of Nursing | Verified and 100% Correct Q & A |

BIOS 242 Microbiology Week 2 Quiz (2 Versions, Latest-2022) / BIOS242 Week 2 Quiz / BIOS 242 Week 2 Quiz: Microbiology: Chamberlain College of Nursing | Verified and 100% Correct Q & A | BIOS 242 Microbiology Week 2 Quiz / BIOS242 Microbiology Week 2 Quiz (2 Latest Versions): Chamberlain College of Nursing BIOS242 Quiz 2/ BIOS 242 Quiz 2 (2 Latest Versions): Microbiology: Chamberlain College of Nursing Question 1 (TCO 3) Cellular organelles and viruses are generally measured in _____. Correct! nanometers millimeters micrometers centimeters decimeters Chapter 4: Microscopy, Staining, and Classification Question 2 (TCO 3) Why does immersion oil improve resolution? It allows light to travel at a uniform speed on its way to the lens. It decreases the working distance. It increases the numerical ! It increases numerical aperture and maintains a uniform light speed. It increases the angle of refraction of the light. Chapter 4: Microscopy, Staining, and Classification Question 3 (TCO 3) A patient with tuberculosis could be diagnosed by use of the _____ stain. Gram endospore acid-fast flagellar capsule Chapter 4: Microscopy, Staining, and Classification Question 4 (TCO 3) The rules of naming organisms are called _____. taxonomyrrect! nomenclature classification binomials identification Chapter 4: Microscopy, Staining, and Classification Question 5 (TCO 3) Which of the following statements about transmission electron microscopy is false? Thin segments must be used. Electrons are the source of illumination. Correct! Glass lenses are used. The sample is placed in a vacuum. Stains can be applied to improve contrast. Chapter 4: Microscopy, Staining, and Classification Question 6 (TCO 4) A cell that uses an organic carbon source and obtains energy from light would be called a _____. photoheterotroph lithoautotroph photoautotroph chemoheterotroph chemoautotroph Chapter 6: Microbial Growth and Nutrition Question 7 (TCO 4) Human pathogens are classified as _____. thermoduric thermophilesCorrect! mesophiles hyperthermophiles psychrophiles Chapter 6: Microbial Growth and Nutrition Question 8 (TCO 4) Organisms that can grow with or without oxygen present are _____. obligate aerobes facultative anaerobes aerotolerant anaerobes obligate anaerobesorrect! either facultative anaerobes or aerotolerant anaerobes Chapter 6: Microbial Growth and Nutrition Question 9 (TCO 4) The use of salt and sugar in preserving various types of foods is an application of which of the following concepts? Nitrogen fixationCorrect! Osmotic pressure pH Hydrostatic pressure Quorum sensing Chapter 6: Microbial Growth and Nutrition Question 10 (TCO 4) During the _____ of growth, new cells are being produced at the same rate as other cells are dying. lag phase log phase death phase stationary phase intermediate phase Chapter 6: Microbial Growth and Nutrition Question 11 8 / 10 pts (TCO 4) Compare and contrast the streak-plate method of isolation with the pour-plate method of isolation. BIOS 242 WEEK 2 QUIZ uestion 1 (TCO 3) Which of the following is a magnifying lens? Objective Ocular Condenser Dark-field stop Correct! Both the objective and the ocular Chapter 4: Microscopy, Staining, and Classification Question 2 (TCO 3) The microscope preferred for viewing living specimens is the _____ microscope. You Answered bright-field Correct Answer phase-contrast scanning electron scanning tunneling transmission electron Chapter 4: Microscopy, Staining, and Classification Question 3 (TCO 3) If a microbiology lab technician left the safranin out of the Gram stain procedure, what would be the result? All cells would be purple. Correct! Gram-positive cells would be purple, and Gram-negative cells would be colorless. All cells would be pink. Gram-positive cells would be pink, and Gram-negative cells would be purple. Gram-positive cells would be colorless, and Gram-negative cells would be pink. Chapter 4: Microscopy, Staining, and Classification Question 4 (TCO 3) The rules of naming organisms are called _____. taxonomy Correct! nomenclature classification binomials identification Chapter 4: Microscopy, Staining, and Classification Question 5 (TCO 3) All of the following are associated with smear preparation except _____. Correct! agglutination of the specimen spreading the specimen onto a slide fixation using heat killing the microbes in the specimen fixation using methanol or formalin Chapter 4: Microscopy, Staining, and Classification Question 6 (TCO 4) A(n) _____ organism is one that requires oxygen for growth. You Answered anaerobic facultative anaerobic aerotolerant Correct Answer obligate aerobic Both aerotolerant and anaerobic Chapter 6: Microbial Growth and Nutrition Question 7 (TCO 4) A microbe that grows only at the bottom of a tube of thioglycollate medium is probably a(n) _____. obligate aerobe facultative anaerobe aerotolerant anaerobe microaerophile Correct! obligate anaerobe Chapter 6: Microbial Growth and Nutrition Question 8 (TCO 4) A fastidious organism might be grown on which of the following types of media? Transport media Reducing media Correct! Enriched media Differential media Selective media Chapter 6: Microbial Growth and Nutrition Question 9 (TCO 4) Another term for the logarithmic growth of bacterial cells is _____. generation time Correct! exponential growth arithmetic growth absorbance binary fission Chapter 6: Microbial Growth and Nutrition Question 10 (TCO 4) _____ are complex communities of various types of microbes that adhere to surfaces. Aggregates Colonies Isolates Correct! Biofilms Media Chapter 6: Microbial Growth and Nutrition Question 11 10 / 10 pts (TCO 4) Explain how temperature and pH levels can influence microbial infections in the human body.