KROK 1 2012 – Question 188 · KROK (Medicine) · Microbiology, Virology, and Immunology

Vomiting matters of a patient suspected of having cholera were delivered to the bacteriological laboratory. The material was used for preparing a "hanging drop"specimen. What type of microscopy will be applied for identification of the causative agent by its mobility?

  1. A. Phase-contrast microscopy
  2. B. Electron microscopy
  3. C. Fluorescence microscopy
  4. D. Immersion microscopy
  5. E. Immune and electron microscopy
Hint

Motility has to be judged in living bacteria without staining, so ask which optical technique makes transparent live cells visible.

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