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Nursing Entrance (BSc Nursing) — free MCQ practice

Choose from 28 questions across 1 subjects and 4 topics. Open any question for its answer and worked solution, or keep learning through bite-sized lessons and reviews with Quill.

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Nursing Entrance (BSc Nursing) subjects

Microbiology (28)

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BiologyLaboratory ScienceMicrobiologyMicroscopy and Staining

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A technician uses the commonest laboratory microscope, which shows a dark image on a bright background. That instrument is the:Read the answer and worked solution →The light for that instrument comes from a high-intensity bulb sitting below the stage. That part is the:Read the answer and worked solution →The eyepiece lenses of such a microscope typically magnify by:Read the answer and worked solution →The lenses mounted on the rotating nosepiece are the:Read the answer and worked solution →

Worked practice questions

A technician uses the commonest laboratory microscope, which shows a dark image on a bright background. That instrument is the:

  1. Brightfield microscope
  2. Blacklight microscope
  3. Bench top spectrometer
  4. Balance beam scale
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Correct answer: A. Brightfield microscope

1. Two or more lenses are used. 2. The background stays bright. 3. It is the brightfield microscope. _Source: OpenStax Microbiology, Chapter 2, How We See the Invisible World._

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The light for that instrument comes from a high-intensity bulb sitting below the stage. That part is the:

  1. Condenser
  2. Illuminator
  3. Diaphragm
  4. Nosepiece
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Correct answer: B. Illuminator

1. It supplies the light. 2. It sits under the specimen. 3. It is the illuminator. _Source: OpenStax Microbiology, Chapter 2, How We See the Invisible World._

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The eyepiece lenses of such a microscope typically magnify by:

  1. Ten times
  2. Fifty times
  3. Two times
  4. Five times
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Correct answer: A. Ten times

1. They work with the objective lenses. 2. The usual figure is standard across labs. 3. It is ten times. _Source: OpenStax Microbiology, Chapter 2, How We See the Invisible World._

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