MCB 2289LMicro LearnSmart Lab Mod 4 quiz (EXACT).

1. Stains are commonly used for all the following EXCEPT: 2. Encapsulated organisms are difficult to directly stain because: Staining techniques do NOT provide information on which of the following structures? Which of the following diseases are caused by acid fast bacterium: 3. The purpose of heat fixation is to : 4. All of the following are true regarding bacterial smears EXCEPT: In the acid-fast stain, non-acid fast bacteria appear pink under the microscope: 5. Why might it be important to perform a gram stain on bacterial cells: 6. Gram negative cells appear purple after gram staining whereas gram positive cells appear pink: is used to stain the endospore in the endospore staining procedure: 7. In order to withstand hostile conditions and facilitate survival, some bacteria procedure resistant structures known as: 8. Gram negative cells walls contain a thin layer of peptidoglycan whereas gram positive cell walls contain a thick layer of peptidoglycan: 9. In a differential staining technique, a is used to remove the primary stain from the bacterial cell wall 10. In the gram stain, the chemical that fixes dye in or on cells by forming an insoluble compound in referred to as the : 11. In a negative stain, which of the following is stained: During a simple stain, what will happen in the heat fixation step is omitted: 12. Spherical cells arranged in chains are called : 13. Staining allows for visualization of bacterial cells because it increases contrast during microscopic imaging A simple stain provided enough information about a microbe to clearly identify its species: The first dye applied in a differential staining technique is referred to as the counterstain: