PRESCOTT'S MICROBIOLOGY
11th Edition
ISBN: 2818440045677
Author: WILLEY
Publisher: MCG
expand_more
expand_more
format_list_bulleted
Question
Chapter 20.1, Problem 3CC
Summary Introduction
Haloarchaea (halobacteria, halophilic archaea) belongs to the class Euryarchaeota, inhabit hypersaline environments. To flourish under such extreme environments, haloarchaea and their enzymes have evolved to act optimally in specific conditions with increased concentration of salts and also extreme temperature and pH.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Antifungal Activity of Red Dragon Peel (Hylocereus polyrhizus)ⓒ Rudi Hendra et al 2020 IOP Conf. Ser.: Mater. Sci. Eng. 833 012014
STATE THE HYPOTHESIS (In if-then format):
Plants, when extracted, can produce dyes and the extracts have been used for different purposes such as the textile or food industry [1]. One potential plant that can be used as a natural dye is dragon fruit (Hylocereus cacti) or by another name Pitaya. Wybraniec and coworkers reported that dragon fruit has a potential as a source to produce red pigment and it's called betalains [2]. Betalain is a water-soluble pigment that gives color to flowers and fruits. Betalain pigments are divided into two groups, namely betacyanin which produces purplish red and betaxanthin which produce yellow-orange colors [2, 3].
In the dragon fruit peel, it is also containing pigments which are usually only discarded as food waste and have not been used optimally. This is very unfortunate because the fruit of the dragon fruit itself has…
Compare and contrast ferric iron reduction withreductive dechlorination in terms of (1) product of thereduction and (2) environmental significance.
Pls help ASAP.
Chapter 20 Solutions
PRESCOTT'S MICROBIOLOGY
Ch. 20.1 - MICRO INQUIRY Given that the DC/HB pathway uses...Ch. 20.1 - Prob. 2MICh. 20.1 - Prob. 1CCCh. 20.1 - Why do methanogens use the reductive acetyl-CoA...Ch. 20.1 - Prob. 3CCCh. 20.1 - Compare the ATP and NADH yield of each of the...Ch. 20.2 - MICRO INQUIRY Identify the potential electron...Ch. 20.2 - Retrieve, Infer, Apply What are thermoacidophiles...Ch. 20.2 - Prob. 2CCCh. 20.2 - Compare the carbon and sulfur metabolism of...
Ch. 20.2 - Prob. 4CCCh. 20.2 - Prob. 5CCCh. 20.3 - MICRO INQUIRY What are the mechanisms by which...Ch. 20.3 - Retrieve, Infer, Apply Why are the growth yields...Ch. 20.3 - Prob. 2CCCh. 20.3 - What is the ecological and practical importance of...Ch. 20.3 - Where are extreme halophiles found, and what is...Ch. 20.3 - What is the difference between sensory rhodopsin...Ch. 20.3 - How is Thermoplasma able to live in acidic, very...Ch. 20.3 - In what way are members of the genus Archaeoglobus...Ch. 20 - Prob. 1RCCh. 20 - Prob. 2RCCh. 20 - Prob. 3RCCh. 20 - Prob. 4RCCh. 20 - Prob. 5RCCh. 20 - Prob. 6RCCh. 20 - Prob. 7RCCh. 20 - Some believe that archaea should not be separate...Ch. 20 - Prob. 2ALCh. 20 - Prob. 3ALCh. 20 - Prob. 4ALCh. 20 - Prob. 5ALCh. 20 - Prob. 6ALCh. 20 - Prob. 7AL
Knowledge Booster
Similar questions
- The purification of cytochrome C begins with 1) yeast homogenization using a bead beater in the presence of BME (a reducing agent) and a protease inhibitor from approximately 900 grams of Baker’s yeast. Then, 2) insoluble cell contents were removed by centrifugation at 4,000 x g for approximately ten minutes. The ruptured cells (lysate) after centrifugation had a total volume of 0 mL and a 1.0 mL aliquot was set aside for further analysis. The following data was obtained from the 1.0 mL aliquot to quantify the protein amount and purity: The absorbance at 410 nm of the aliquot was 0.460 (1 cm pathlength). The absorbance at 595 nm from a 1.0 mL Bradford Assay solution that was diluted by 250-fold from the aliquot was 0.681 (1 cm pathlength). Using the information given, Calculate the total protein amount in mg from the absorbance at 595 nm. Calculate the cytochrome C amount in mg from the absorbance at 410 nm using Beer’s Law.arrow_forwardDiscuss the relationship between an organism’s ability to reducenitrate past the nitrite stage and that organism’s proteolyticactivityarrow_forwardPlease asaparrow_forward
- Yeast Catalase Experiment Questions: 1) What is the purpose of having a 0ml hydrogen peroxide group in a yeast catalase experiment? 2) What reactants contain yeast catalase: H2O2 or yeast mixture? 3) What gas is being given when catalase and hydrogen peroxide react?arrow_forwardPropose a metabolic I pathway for methotrexatearrow_forwardExplain the preservation method used in homemade pickled ginger and discuss the biochemical changes that might occur in it.arrow_forward
- To purify a given enzyme from a crude extract that contains it, fractional precipitations, exchange chromatography are successively tested ionic and exclusion chromatography, with the results shown in the following table: Volume of dissolution Protein concentration Enzymatic activity (ml) (mg/ml) (U/ml) a) Calculate the percentage of recovery of the enzyme after each of the manipulations to which it has been subjected. b) Indicate if it is necessary to continue purifying the enzyme or if it is expected to have reached its electrophoretic homogeneity.arrow_forwardPropose a reasonable synthetic route for the preparation of the substituted benzene derivative shown below. You may use whatever reagents are necessary to transform the starting molecule into the desired product. CH(CH3)2 step 1 step 2 step 3 čOH Step 1 reagent/reagents %3D Step 2 reagent/reagents %3D Step 3 reagent/reagentsarrow_forwardWhere do each of these 5 main themes occur in the chymotrypsin mechanism? 1) substrate specificity 2) induced fit 3) covalent catalysis 4) acid/base catalysis 5) transition state stabilizationarrow_forward
- Explain the chemical mechanism yeast alcohol dehydrogenase undergoes?arrow_forwardProvide an example of covalent catalysis in the mechanism of chymotrypsin. What is the nucleophile involved in the formation of this covalent bond? What enabled this group to become a good nucleophile?arrow_forwardWhat is Thomas Slope Method. Why is it used to determine Biochemical Oxygen Demand (BOD) reaction rate constant, K? Based on your findings, please derive the linearized equation for the estimation of the reaction rate constant, K.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- BiochemistryBiochemistryISBN:9781305961135Author:Mary K. Campbell, Shawn O. Farrell, Owen M. McDougalPublisher:Cengage Learning
Biochemistry
Biochemistry
ISBN:9781305961135
Author:Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal
Publisher:Cengage Learning