Across
- 5. Has a series of lenses and uses visible light as a source of illumination.
- 6. Attached to the surface of a glass slide.
- 7. The group of bacteria that stain red during the gram stain.
- 13. A thin film of material, containing the microorganisms, is spread over the surface of the slide.
- 14. Used to color parts of microorganisms, such as endospores, flagella, or capsules.
- 15. Foreign substance that invokes antibody production.
- 17. Calculated by multiplying the objective lens magnification by the ocular lens magnification.
- 22. Eyepiece.
- 23. Structures of locomotion to small to be seen with a light microscope without staining.
- 25. Diagnostic technique in which fluorochromes are attached to antibodies in order to adhere and identify certain pathogenic bacteria.
- 29. Natural defense molecules that are produced by humans and many animals in reaction to a foreign substance (antigen).
- 30. A finely focused beam of electrons passes through a prepared specimen, providing detailed imagery of the interior of the specimen.
- 32. Crystal Violet is this type of stain in the gram stain protocol.
- 33. Gelatinous covering contained by some bacteria.
- 34. Special resistant, dormant structure formed within a cell that protects a bacterium from adverse environmental conditions.
- 35. A finely focused beam of electrons strike the surface of a prepared specimen, providing detailed imagery of the exterior of the specimen.
Down
- 1. The measure of the light-bending ability of a medium.
- 2. Chromophore is the anion in these dyes.
- 3. These types of stains can be used to differentiate between different types of bacteria and different types of bacterial structures.
- 4. The light source on a light microscope.
- 8. These types of stains have a contrasting color to primary stains like crystal violet.
- 9. This type of differential staining technique is used to differentiate gram-positive and gram-negative bacteria.
- 10. The group of bacteria that stain purple during the gram stain.
- 11. These are the lenses that are the closest to the specimen and can be manipulated by the observer.
- 12. Preparing colorless bacteria against a colored background.
- 14. Coloring the microorganisms with a dye that emphasizes certain structures.
- 16. This type of differential stain technique is used to distinguish between bacteria that have a waxy material in their cell walls.
- 18. Chemical is added to the solution to intensify the stain and to increase the affinity of a stain for a biological specimen.
- 19. Chromophore is the cation in these dyes.
- 20. The ability of substances to absorb short wavelengths of light (ultraviolet) and give off light at a longer wavelength (visible).
- 21. The ability of the lenses to distinguish fine detail and structure (also called resolving power).
- 24. Microscopy technique in which a beam of electrons are used instead of visible light, since electrons travel in a wavelength much smaller than visible light, this group of microscopes has a much greater resolving power.
- 26. The alcohol wash solution during the gram stain protocol is used to remove the crystal violet from the gram negative bacteria.
- 27. Contains lenses that direct the light through the specimen.
- 28. The degree to which a pathogen can cause disease.
- 31. Aqueous or alcohol solution of a single basic dye.