Medicine > TEST BANK > Test Bank for Microbiology AN EVOLVING SCIENCE, 4th Edition, John W. Foster, Joan L. Slonczewski (All)

Test Bank for Microbiology AN EVOLVING SCIENCE, 4th Edition, John W. Foster, Joan L. Slonczewski

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CHAPTER 2: Observing the Microbial Cell MULTIPLE CHOICE 1. Chlamydia trachomatis transmits infection to a new cell via a. a membrane vesicle. d. host membranes. b. elementary bodies. e. the human ... cell. c. amoeba. ANS: B DIF: Easy REF: 2.Intro OBJ: 2.1d Identify the type(s) of microscopy needed to view a particular specimen MSC: Remembering 2. The part of the human eye that is MOST involved in resolving an image is the a. iris. d. retina. b. lens. e. cornea. c. optic nerve. ANS: D DIF: Easy REF: 2.1 OBJ: 2.1a Explain how the structure of the human eye dictates the resolution of objects MSC: Remembering 3. A ball-shaped microbe is referred to as a a. bacillus. d. strepto. b. coccus. e. spirochete. c. vibrio. ANS: B DIF: Easy REF: 2.1 OBJ: 2.1c Describe and identify bacterial morphologies (e.g., bacilli, cocci, and spirochetes) MSC: Remembering 4. Resolution is the smallest distance by which two objects can be ________ and still be ________. a. magnified; seen d. distinguished; separated b. separated; distinguished e. magnified; distinguished c. magnified; separated ANS: B DIF: Medium REF: 2.1 OBJ: 2.1b Differentiate between resolution and detection MSC: Remembering 5. 400 nm is equivalent to a. 4.0  105 m. d. 4.0  108 m. b. 4.0  106 m. e. 4.0  109 m. c. 4.0  107 m. ANS: C DIF: Medium REF: 2.1 OBJ: 2.1a Explain how the structure of the human eye dictates the resolution of objects MSC: Applying 6. Which of these series arranges microbes from smallest to largest? a. virus  bacterium  red blood cell  paramecium b. virus  red blood cell  bacterium  paramecium c. bacterium  virus  paramecium  red blood cell d. bacterium  virus  red blood cell  paramecium e. paramecium  red blood cell  bacterium  virus ANS: A DIF: Difficult REF: 2.1 OBJ: 2.1c Describe and identify bacterial morphologies (e.g., bacilli, cocci, and spirochetes) MSC: Applying 7. What happens if the wavelength of radiation is larger than the object being viewed? a. absorption d. refraction b. scattering e. resolution c. no resolution ANS: C DIF: Easy REF: 2.2 OBJ: 2.2a Identify what conditions must exist for electromagnetic radiation to resolve an object from neighboring objects or the surrounding medium MSC: Remembering 8. Wavelength interference results in small observed objects (like bacteria) being surrounded by a. a capsule. d. a dark field. b. a membrane. e. a cell wall. c. concentric rings. ANS: C DIF: Difficult REF: 2.2 OBJ: 2.2b Explain the properties of light MSC: Applying 9. What is the MOST important property that enables a lens to magnify an image? a. absorption d. refraction b. fluorescence e. scattering c. reflection ANS: D DIF: Easy REF: 2.2 OBJ: 2.2c Differentiate among absorption, reflection, refraction, and scattering MSC: Remembering 10. When two waves are out of phase by ________ wavelength, they produce destructive interference, canceling each other’s amplitude and resulting in contrast in the image. a. one-tenth of a d. one-half of a b. one-eighth of a e. one c. one-quarter of a ANS: D DIF: Difficult REF: 2.2 OBJ: 2.2d Explain how lenses magnify images MSC: Understanding 11. Increasing the refractive index of the medium between the object and the objective lens increases a. refraction. d. resolution. b. reflection. e. wavelength. c. magnification. ANS: D DIF: Difficult REF: 2.2 OBJ: 2.2d Explain how lenses magnify images MSC: Understanding 12. If aqueous cytoplasm was submerged in a beaker of immersion oil, the slide would be a. undetectable. d. fluorescent. b. brighter than its surroundings. e. stained. c. darker than its surroundings. ANS: A DIF: Medium REF: 2.2 [Show More]

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