Can an organism that doesn't utilize citrate grow on the Citrate agar we use in class? O It depends. It is selective and differential media. Only bile resistant organisms can grow on the plate. Then they are differentiated for use of citrate by whether a color change occurs in the test. No, it is a selective test only and citrate is the only carbon source. Yes, it is a differential test only and there are other nutrients available.

Describe characteristics of Streptococcus Agalactiae in the Agar: (How does colonies look like (color) and explain does it grow on that agar.  Blood Agar (Aerobic) MacConkey EMB PEA Mannitol Salt Agar Chocolate Agar Nutient Agar

What is the grade of raw milk in Figure 8? Grade of pasteurized milk?

Using the attached image, explain the observed results on the NA and ECM plates. Be sure to address why each sample is either able or unable to grow on each plate and include the genotype(s) of the cells which are capable of growth.

In a Kligler Iron Agar/Triple Sugar Iron test you end up with a result with a yellow butt and red slant. Please interpret this result. In the same test you end up with the agar mainly black but with a yellow slant what does this result indicate?

Give one or two product of Milk and answer the following queston: look at the labels of the different milk preparations: 1. Method of sterilization used. 2. What is the Bacterial culture and flavor used if there is any. 3. What is the Fat, Protein & Carbohydrate(sugar) content? 4. Is fortification done? What substances has been fortified (based on the label)? 5. Are Vitamins & amino acids added? Name them based on the label.

Is it important to have a standardized way of counting and reporting AFB seen on a direct sputum smear? Why or why not?

Write a detailed description of the following plate  1- blood Agar plate  2-PEa Agar Plate

In the tests MR-VP Test, Triple Sugar Iron test, and Blood Agar Plates (BAP) Streak-stab technique. What are the results for each test when looking at the bacteria:   Micrococcus luteus Staphylococcus aureus Staphylococcus epidermidis Enterobacter aerogenes Escherichia coli Proteus vulgaris Pseudomonas aeruginosa Salmonella typhimurium Serratia marcescens

Answer each of the questions below using the plate images provided. Nutrient Agar 1 EMB Blood Agar 1. How many colonies are on NA plate 3?. 2. How many bacteria were transferred to NA plate 3?. 3. How many colonies are on NA plate 2? 4. How many bacteria were transferred to NA plate 2?. 5. How would you describe the growth on NA plate 1?. 6. How many colonies grew together on NA plate 1? 7. How many bacteria were transferred to NA plate 1? Nutrient Agar 2 8. How many bacteria collected from the source? (Hint: What fraction of tube 1 was spread on NA plate 1?) 9. Were any of the bacteria from the source Gram-negative? How can you tell?. 10. Could any of the bacteria from the source ferment lactose? How can you tell? Nutrient Agar 3 11. Were any of the bacteria from the source hemolytic? How can you tell?. 00