1. explain the structural principles behind the gram stain. 2. what can you learn by conducting...

1. explain the structural principles behind the gram stain.

2. what can you learn by conducting a gram stain ?

Expert Solution

gladiator answered 8 months ago

1. Can iodine be added before the primary stain in a Gram stain? Explain. If iodine...

1. Can iodine be added before the primary stain in a Gram stain? Explain. If iodine was added before the primary stain, what would be the final color of gram positive and gram negative cells in the stain and why? 2. Since you can’t identify bacteria from a Gram stain, why might a physician perform a Gram stain on a sample before prescribing an antibiotic? 3. The cell envelope of Mycobacterium sp. is unlike the envelope of other bacteria. While...

1.) You are asked to prepare a gram stain from a mixture of gram positive and...

1.) You are asked to prepare a gram stain from a mixture of gram positive and gram negative bacteria during lab. What would happen if you remembered all steps.... except to decolorize – what color would the Gram (+) and Gram (-) be? except to add safranin – what color would the Gram (+) and Gram (-) be? 2.) The organism Yersinia pestis causes the plague, which caused a pandemic in Europe. What test reults would you expect to observe...

1. how is gram stain done? 2. What types of bacteria are stained differently in the...

1. how is gram stain done? 2. What types of bacteria are stained differently in the Gram stain? 3. What is the key step in the Gram stain that distinguishes between two different cell types? Explain why. The laboratory reported gram-negative bacteria arranged inside the leukocytes of the pus sample. Other tests confirmed the pathogen was Neisseria gonorrhoeae, indicating Tom had the sexually transmitted infection gonorrhea. 4. Describe the shape of the gram-negative bacteria shown in the photo. Dr. Nelson...

Please TYPE your answer What do students learn from their experiences such as Gram stain, HMB,...

Please TYPE your answer What do students learn from their experiences such as Gram stain, HMB, and persistent the bacteria to penicillin (P10) in microbiology course that will continue to influence them for many years to come? Using specific MORE examples for your statement AND How will students learn these things? at least 500 words

1. In gram stain if at the end of the procedure both the Gram-positive and Gramnegative...

1. In gram stain if at the end of the procedure both the Gram-positive and Gramnegative bacteria appear red what was the most common Technical error 2. In Gram stain you stop the procedure atter decolonization how would the Gram-negative bacteria appear? How would the Gram-positive

When performing GRAM STAIN, explain a. What would happen if you let the alcohol rinse (decolorizing...

When performing GRAM STAIN, explain a. What would happen if you let the alcohol rinse (decolorizing step) for too long? What is the correct term to describe this? b. What would happen if you reversed the order of the mordant and the primary stain? c. Fill out this chart **** STEP REAGENT PURPOSE (FUNCTION) GM+ Color GM- Color 1 2 3 4

What is the purpose of the iodine in the Gram stain procedure? If this step was...

What is the purpose of the iodine in the Gram stain procedure? If this step was left out, what color would Gram negative and Gram positive cells appear after completion of the stain?

What are three differences between Gram-positive and Gram-negative cells? (*Not including properties associated with the Gram-stain)....

What are three differences between Gram-positive and Gram-negative cells? (*Not including properties associated with the Gram-stain). Provide an explanation, or description, for each.

Explain gram stain method in terms of how useful it is (along with the shape of...

Explain gram stain method in terms of how useful it is (along with the shape of the bacterial cell) to make an identification.

1, Briefly discuss how the Gram stain works, Not the steps but the biochemical basis, what...

1, Briefly discuss how the Gram stain works, Not the steps but the biochemical basis, what leads to the differential staining? Name one organism (genus and species) that is a Gram positive coccus, and one that the Gram stain will not work on. 2, Choose 2 of these diagnostic tests and briefly describe how each works. Your answer should include what is used and what a positive result would look like. Catalase test, hemagglutinin assay, coagulase test, IF test, virus...

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