0. Adding sugar to jellies can kill bacteria because it creates a solution for them. A. Hydrotonic D. Isotopic E. Hypertonic B. Isotonic С. Нурotonic

1. If an organism tests positive for catalase, which of the following is MOST likely true about the organism? It returns nitrogen back to the atmosphere It can only do homolactic fermentation It creates H2O as a product of respiration It can break down plasma membranes

Match the protein structural level to its description. the order of amino acids interactions between multiple polypeptides interactions between R groups within a single polypeptide alpha helices and beta sheets Choose... Choose... Choose... Choose...

1. Which of the following organisms would you use to change alkaline conditions to acidic conditions? a. B. cereus-VP + b. S. aureus- Glucose metabolism test + c. E. coli- Decarboxylase + d. P. vulgaris- Simmon's citrate + e. E. aerogenes- Gelatinase + 2. Which of the following results is similar to your carbohydrate metabolism tests results when bacterial metabolic byproducts initiated a color change of red to yellow in the agar? a. B. cereus-MR + b. S. aureus-VP+ c. E. coli- Decarboxylase + d. P. vulgaris- Simmon's citrate + e. E. aerogenes- Gelatinase + 3. After an acid-fast stain, a gram positive organism would be a. blue b. green c. cranberry red d. yellow e. orange 4. Your patient is on a diet where he consumes a lot of protein. Due to this diet and the over consumption of proteins, he is dangerously close to his blood becoming acidic. So therefore, which of the following did you administer (hypothetically) to buffer the acids? a. B. cereus: VP b. S. aureus: Decarboxylase + c. L.…

4. The graph below shows Vo vs Vo / [S] for an enzyme-catalyzed reaction. The blue curve was obtained in the absence of inhibitor. Which of the other curves shows the enzyme activity when a competitive inhibitor is added? Slope K V. A. Curve A B. Curve B C. Curve C D. None of the above 5. The favorable growing conditions of a microbe is at 37°C and pH 6. Which of the following classifications are correct? I Thermophile II. Mesophile III. Acidophile IV. Neutrophile A. I and II B. I and IV C. Il and III D. Il and IV 6. Which of the following statement is the most appropriate for the description of a sample which has been filtered with 0.2 um syringe filter A. The sample is sterile B. All bacteria in the sample are removed C. Most of the cells or substances larger than 0.2 um are removed D. The sample was cleaned

1) Using the word bank (in letters a-t), match the letters to the sentences below:

3. An adjunct such as corn or oats is available in two formats: pre-gelatinized or just dried. Which would you expect to cost more per pound? What would a brewer need to do to be able use each of these adjuncts successfully in the mash?

The soil bacterium Azotobacter can be enriched from soil using liquid media, which must contain the following Mannitol Nitrate (NO3-) Amino Acids Ammonia (NH4+) All the above