137 in Action Exercise 3-4: Learning in Action 1. With MacConkey agar, what would be the...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
137 in Action Exercise 3-4: Learning in Action 1. With MacConkey agar, what would be the possible consequence of: a. replacing the lactose with glucose? Replacing the lactose w/ glucose would defeat the ability to differentiate between fermenting gram negative organisms and ta those that can't ferment lactose. b. replacing the neutral red with phenol red (yellow when acidic; red or pink when alkaline)? 2. How would removing the crystal violet from MacConkey agar alter the sensitivity and specificity of the medium? 3. MacConkey agar is a selective medium. Is it also a defined or an undefined medium? Why is that formulation desirable? 4. Do Gram-positive bacteria grow on MacConkey agar? If not, what prevents their growth? 137 in Action Exercise 3-4: Learning in Action 1. With MacConkey agar, what would be the possible consequence of: a. replacing the lactose with glucose? Replacing the lactose w/ glucose would defeat the ability to differentiate between fermenting gram negative organisms and ta those that can't ferment lactose. b. replacing the neutral red with phenol red (yellow when acidic; red or pink when alkaline)? 2. How would removing the crystal violet from MacConkey agar alter the sensitivity and specificity of the medium? 3. MacConkey agar is a selective medium. Is it also a defined or an undefined medium? Why is that formulation desirable? 4. Do Gram-positive bacteria grow on MacConkey agar? If not, what prevents their growth?
Expert Answer:
Answer rating: 100% (QA)
Answer 1 a It would be impossible to distinguish between bacterial strains b acid manufacturers woul... View the full answer
Related Book For
Foundations in Microbiology
ISBN: 978-0073375298
8th edition
Authors: Kathleen Park Talaro, Barry Chess
Posted Date:
Students also viewed these accounting questions
-
When in a deep recession, what would be the expected effect of the recession on accounts receivable turnover ratios?
-
In Exercise 37, what would be the escape speed at a distance of two Schwarzschild radii from the center of the black hole Sun? Compare your answer to the actual escape speed at a distance of twice...
-
What would be the technical classification of the following turbo machines?
-
For problems involving composite bodies composed of two or more materials, the elasticity solution requires both boundary conditions and interface conditions between each material system. The...
-
Suppose that your company has an equity position in a French firm. Discuss the condition under which dollar leuro exchange rate uncertainty does not constitute exchange exposure for your company.
-
Balance the following equations. a. Cl2O7 + H2O HClO4 b. MnO2 + HCl MnCl2 + Cl2 + H2O c. Na2S2O3 + I2 NaI + Na2S4O6 d. Al4C3 + H2O Al(OH)3 + CH4 e. NO2 + H2O HNO3 + NO
-
Assume that a \(\$ 1,000,8 \%\) (payable semiannually), 10 -year bond is sold at a market rate of \(6 \%\). Explain how to compute the price of this bond.
-
The Alpha Beta Company produces two products; A and B, that are made from components C and D. Given the following product structures, master scheduling requirements, and inventory information,...
-
Chapter 13: Problem 1 Juanita Company must decide whether to make or buy some of its components. The costs of producing 50,000 electrical cords for its floor lamps are as follows Direct materials $...
-
Pacifico Company, a U.S.-based importer of beer and wine, purchased 1,500 cases of Oktoberfest-style beer from a German supplier for 390,000 euros. Relevant U.S. dollar exchange rates for the euro...
-
0.4 For the circuit shown in figure, if ED is = 6 cossot calculate the power absorbed by 5or resistor. 2628 ist) . Ix 3502 20ix 40MF 20mH w Lor on A
-
Identifying items with financial statements Indicate in which financial statement each item would most likely appear: income statement (I), balance sheet (B); or statement of owners equity (E). a....
-
What further information is needed to produce a more complete appraisal?
-
What are computer assisted audit tools and techniques (CAATTS)?
-
Describe how reports and graphs are used in QuickBooks Accountant.
-
Periodic or cycle counts of selected inventory items are made at various times during the year rather than via a single inventory count at year-end. Which of the following is necessary if the auditor...
-
A random sample of 36 values is drawn from a mound-shaped and symmetric distribution. The sample mean is 10 and the sample standard deviation is 2. Use a level of significance of 0.05 to conduct a...
-
A sprinkler head malfunctions at midfield in an NFL football field. The puddle of water forms a circular pattern around the sprinkler head with a radius in yards that grows as a function of time, in...
-
You have obtained a blood sample in which only red blood cells are left to analyze. a. Can you conduct a DNA analysis of this blood? b. If no, explain why.
-
a. Is the greenhouse effect harmful under ordinary circumstances? b. List the primary greenhouse gases and explain their effects on the earths temperature. c. What occurrence has made them dangerous...
-
a. Explain why a direct antigen test for HIV infection would be preferable to a serological test for antibodies. b. What factors have prevented the development of an effective AIDS vaccine? c. Give a...
-
For the flow analysis in Problem 10, consider the situation when temperature is not constant. There is an internal heat source with volumetric rate \(Q\). The duct's walls are thermally insulated....
-
A steady-state turbulent flow through a long coiled duct is modeled using the standard \(k-\epsilon\) model. Assuming the fluid is incompressible and isothermal, write the full system of equations...
-
What determines the adequate grid step in LES far from the walls?
Study smarter with the SolutionInn App