COWAN CONNECT ACCESS CARD MICROBIOLOGY:
4th Edition
ISBN: 9781265200015
Author: Cowan
Publisher: MCG
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Chapter 25.3, Problem 10AYP
Name five foods and/or beverages that are produced using microbial fermentation.
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. Consider a base substitution mutation that occurred in a DNA sequence that resulted in a change in the
encoded protein from the amino acid glutamic acid to aspartic acid. Normally the glutamic acid amino acid
is located on the outside of the soluble protein but not near an active site.
O-H¨
A. What type of mutation occurred?
O-H
B. What 2 types of chemical bonds are found in the R-groups
of each amino acid? The R groups are shaded.
CH2
CH2
CH2
H2N-C-COOH
H2N-C-COOH
1
H
Glutamic acid
H
Aspartic acid
C. What 2 types of bonds could each R-group of each of these amino acids form with other molecules?
D. Consider the chemical properties of the two amino acids and the location of the amino acid in the
protein. Explain what effect this mutation will have on this protein's function and why.
engineered constructs that consist of hollow fibers are acting as synthetic capillaries, around which cells have been loaded. The cellular space around a single fiber can be modeled as if it were a Krogh tissue cylinder. Each fiber has an outside “capillary” radius of 100 µm and the “tissue” radius can be taken as 200 µm. The following values apply to the device:R0 = 20 µM/secaO2 = 1.35 µM/mmHgDO2,T = 1.67 x 10-5 cm2/secPO2,m = 4 x 10-3 cm/secInstead of blood inside the fibers, the oxygen transport and tissue consumption are being investigated by usingan aqueous solution saturated with pure oxygen. As a result, there is no mass transfer resistance in the synthetic“capillary”, only that due to the membrane itself. Rather than accounting for pO2 variations along the length ofthe fiber, use an average value in the “capillary” of 130 mmHg.Is the tissue fully oxygenated?
Molecular Biology
Please help with question. thank you
You are studying the expression of the lac operon. You have isolated mutants as described below. In the presence of glucose, explain/describe what would happen, for each mutant, to the expression of the lac operon when you add lactose AND what would happen when the bacteria has used up all of the lactose (if the mutant is able to use lactose).5. Mutations in the lac operator that strengthen the binding of the lac repressor 200 fold
6. Mutations in the promoter that prevent binding of RNA polymerase
7. Mutations in CRP/CAP protein that prevent binding of cAMP8. Mutations in sigma factor that prevent binding of sigma to core RNA polymerase
Chapter 25 Solutions
COWAN CONNECT ACCESS CARD MICROBIOLOGY:
Ch. 25.1 - Compose a sentence about the history of applied...Ch. 25.1 - Define biotechnology, and explain how its uses...Ch. 25.2 - Outline the steps in water purification.Ch. 25.2 - Differentiate water purification from sewage...Ch. 25.2 - Prob. 5AYPCh. 25.2 - Prob. 6AYPCh. 25.2 - List five important pathogens of drinking water.Ch. 25.2 - Provide examples of indicator bacteria, and...Ch. 25.2 - Summarize methods for identifying and quantifying...Ch. 25.3 - Prob. 2CF
Ch. 25.3 - Name five foods and/or beverages that are produced...Ch. 25.3 - Summarize the microbial process that leads to...Ch. 25.3 - Write the equation showing how yeasts convert...Ch. 25.3 - Discuss how microorganisms themselves are useful...Ch. 25.3 - Provide background on current HACCP guidelines,...Ch. 25.3 - Prob. 15AYPCh. 25.3 - Outline basic principles of using temperature to...Ch. 25.3 - List methods other than temperature currently used...Ch. 25.4 - Prob. 18AYPCh. 25.4 - Distinguish between primary and secondary...Ch. 25.4 - List the four steps of industrial product...Ch. 25.4 - Identify five industrial products made by...Ch. 25 - Prob. 1CFCh. 25 - Drinking water utilities monitor their production...Ch. 25 - Milk is usually pasteurized by a. the...Ch. 25 - During sewage treatment, microbial action on a...Ch. 25 - Which of the following is unlikely to be a...Ch. 25 - The bloom in wine making refers to a. the...Ch. 25 - When algae produce biofuels, what is the other...Ch. 25 - Secondary metabolites of microbes are formed...Ch. 25 - In industrial fermentation, which step precedes...Ch. 25 - Which of the following is currently being produced...Ch. 25 - In biotechnology, fermentation refers to a. the...Ch. 25 - Prob. 11TFCh. 25 - Food products should always be kept completely...Ch. 25 - Alcoholic beverages are produced by the...Ch. 25 - Prob. 14TFCh. 25 - Refrigerating food prevents the growth of all...Ch. 25 - a.Summarize one beneficial use of sludge today,...Ch. 25 - Every year, supposedly safe municipal water...Ch. 25 - Provide evidence in support of or refuting the...Ch. 25 - a.List examples of microbes used in the production...Ch. 25 - Prob. 5CTQCh. 25 - Prob. 6CTQCh. 25 - Prob. 7CTQCh. 25 - Further investigate the HACCP system, and...Ch. 25 - Prob. 9CTQCh. 25 - Prob. 10CTQCh. 25 - Prob. 1CCCh. 25 - Prob. 2CCCh. 25 - Prob. 3CCCh. 25 - Prob. 4CCCh. 25 - Prob. 5CCCh. 25 - Prob. 6CCCh. 25 - Prob. 7CCCh. 25 - From chapter 3, figure 3.5b. If this MacConkey...Ch. 25 - Prob. 2VCCh. 25 - Using the words that follow, please create a...
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