You are told to analyze the purity of your product with TLC. Which of the following TLC plates would indicate a pure product? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a A TLC plate where the product lane has one spot with an Rf value that exactly matches that of the starting material. b A TLC plate where the product lane has one spot which has a lower Rf value than the starting material. с A TLC plate where the product lane has two spots, one with a higher Rf value than the starting material and one with a lower Rf value. d A TLC plate where the product lane has one spot which has a higher Rf than the starting material.

A quality control test that involves a media fill procedure should include multiple manipulations using all of the following EXCEPT: Select one: O a. O b. O C. O d. Glass vials Glass beakers Glass ampoules Empty sterile bags Q Search T M BOE 10

Hand washing can be done using either  soap and water or isopropyl alcohol. soap and water or an alcohol-based hand rub. an alcohol-based hand rub or povidone-iodine solution. an alcohol-based hand rub or sodium hypochlorite.

If, when using 10X ocular and a 20X objective, the field size is 2 mm. The approximate field size with a 50X objective is ________ mm. 0.6 0.8 0.4 1

Would you expect the results from the MAC test to corroborate the results from the EMB test? Explain why or why not.

Salmonella-Shigella (SS) agar plate results (kitchen sink drain and kitchen dish cloth) Using the following information about SS agar and the image below, describe and identify the growth on the SS agar plate in the table on page 6. SS agar plate - results of kitchen sink drain and kitchen dish cloth (plate below) Salmonella-Shigella (SS) agar: Salmonella-Shigella agar (SS agar) is a selective and differential medium utilized for the selection and characterization pathogenic enteric bacteria. SS agar contains lactose, bile salts, ferric citrate, and neutral red. Kitchen The bile salts select for Gram-negative bacteria, while inhibiting Gram-positive bacteria. sink drain The other components differentiate among Gram-negative bacteria. Coliform bacteria such as E. coli will ferment the lactose in the media, resulting in bacterial growth with a pink color. (They do not produce any hydrogen sulfide.) Members of the genus Salmonella will not ferment lactose, but do product hydrogen sulfide…

Name the plastic used in each a.) ______ is tricky to use with packaging because it leaves toxic residues that must be disposed of.  b.) ____ is used for IV bags.

True or False:  The agar is autoclaved on the fast cycle in order to speed up the plate preparation process.

Given the following media recipe, pick the terms that apply (pick as many as are applicable). 10.0 g Meat extract 10.0 g Peptone 5.0 g Sodium chloride 15.0 g 1.0 L Agar Water Once media is cool, add 6% sterile sheep's blood Defined Complex Minimal Selective Differential

Please help me to find positive or negative results for the Oxidase lab test for microbiology, recognize the species and explain the reason behind the result.