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Microbiology Quiz #1 - Statistics
General Stats
- This quiz has been taken 91 times
- The average score is 4 of 23
Answer Stats
| Hint | Answer | % Correct |
|---|---|---|
| What is used as a decolourizer in gram staining? | Alcohol | 53%
|
| What is used as a primary stain in gram staining? | Crystal Violet | 49%
|
| What is used as a mordant in gram staining? | Iodine | 48%
|
| Type of microscopy which uses subatomic particles instead of light | Electron | 45%
|
| Microbe which inhabits hostile environments | Extremophile | 39%
|
| A ____ lens can be used to focus light at a specific point | Convex | 27%
|
| Which type of bacteria caused the great oxygenation event? | Cyanobacteria | 25%
|
| Fixation which is routinely used with bacteria and archaea, preserves overall morphology but not internal structures | Heat | 19%
|
| Ability of a lens to distinguish between 2 points | Resolution | 19%
|
| Dye which carries a positive charge | Basic | 16%
|
| Dye which carries a negative charge | Acid | 14%
|
| Type of microscope which uses excitation with light of a specific wavelength to cause a fluorescent protein to emit longer wavelength light. | Fluorescence | 14%
|
| Measure of how greatly a substance slows velocity of light | Refractive index | 12%
|
| What is used as a counterstain in gram staining? | Saffranine | 12%
|
| Which staining method is useful for staining bacteria of the genus Mycobacterium due to the high lipid content of their cell walls? | Acid-Fast stain | 10%
|
| Fixation used with larger, more delicate organisms which protects fine cellular substructure and morphology | Chemical | 8%
|
| Specific set of growth requirements for a microbe | Niche | 8%
|
| Type of microscope which creates sharp, composite 3D image of specimens by using laser beam, aperture to eliminate stray light, and computer interface | Confocal | 6%
|
| RNA which forms peptide bonds and performs cellular work and respiration | Ribozyme | 6%
|
| Type of microscope which converts differences in refractive index/cell density into detected variations in light intensity | Phase-Contrast | 5%
|
| Species of microbe which relies on metabolic activity of other organisms to grow | Syntrophy | 4%
|
| Rock-like structures in shallow water formed by microbes | Stromatolite | 3%
|
| Rapid freezing technique providing a way to preserve native state of structures examined in vacuum | Electron Cryotomography | 0%
|
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