23. In the Anthony method of staining the bacterial capsule, which step is not i

Question

23. In the Anthony method of staining the bacterial capsule, which step is not included in order to avoid shrinking and destroying the capsule a. Smear preparation b. a basic dye c. Heat fixing d. All of the above 24. In the acid fast stain, an organism such as Mycobacterium smegmatis will stain after a successful staining technique a. Blue due to the primary stain, methylene stain b. Pink to red due to the primary stain, carbol fuchsine c. Green due to the primary stain, malachite green d. None of the above 25. The Schaeffer- Fulton method of staining utilizes to stain the endospore and to stain the vegetative cell a. Safranin; malachite green b. Malachite green; safranin c. Methylene blue; iodine d. Iodine; methylene blue 26. A common media used in a Microbiology lab is nutrient agar. It is considered a media because its exact composition is not known but it contains all the necessary ingredients for most facultative organisms to grow successfully a. Defined b. Selective c. Minimal d. Complex 27. Rod shaped bacteria are called a. Bacilli b. Streptococci c. Cocci d. Spirilla 28. Some bacteria such as Clostridium form a thick- walled structure called in response to poor environmental conditions. a. Endospore 29. Nitrifying bacteria are an example of b. Chemoautotrophs 30. Organisms that obtain their energy by oxidizing inorganic chemical sources are called b. Capsule c. Sheath d. Pilus c. Chemoheterotrophs d. Photoheterotrophs a. Photoautotrophs c. Chemoheterotrophs d. Photoheterotrophs 31. If you carried out an experiment growing different types of microorganisms in liquid culture, which c. microaerophiles type of organism would you find congregated just a little below the liquid's surface? a. obligate aerobes b. obligate anaerobes d. aerotolerant bacteria 32. A particular agent that only inhibits the growth of bacterial cells but does not kill them is said to be while an agent that kills the bacterial cells is said to be a. Antiseptic; bacteriostatic b. Bacteriostatic; bactericidal c. Bactericidal; bacteriostatic d. Sporocidal; fungicidal 33. Which term best describes an organism that can't exist in the presence of oxygen? a. obligate aerobe b. facultative aerobe c. obligate anaerobe d. facultative anaerobe

Explanation / Answer

Ans 23 :c) Heta fixing

The slide is not heat ficxed in the anthony's method as the heat will melt the capsule. So the film is allowed to air dry. The slide is not rinsed with water and also not blotted , as it will reduce the bacterial density on the film.

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