The iso-electric point for milk cases is 4. Discuss why milk curdles as bacteria that produce lactic acid cause the milk curds to form?
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The iso-electric point for milk cases is 4. Discuss why milk curdles as bacteria that produce...
Place the item into the correct sentence about the industrial applications of bacteria. vinegar Milk producers use bacteria to produce for curdling milk. bt toxin Bacteria are used by the pharmaceutical industries to produce antibiotics. АТР peptidoglycan In agriculture, from bacteria is used to control plant pests. acetate DNA amplification in the laboratory is facilitated by the bacterial production of DNA polymerase lactic acid antibiotics
Lactic acid, C3H6O3 occurs in sour milk as a result on metabolism of certain bacteria.. What is the pH of a solution of 156 mg of lactic acid in 250 mL water? The Ka of lactic acid is 1.4 x 10-4. This problem is broken into steps over the next couple of problems. part 1. What is the initial concentration of lactic acid? part 2. What is the value of H3O+ concentration? part 3. What is the pH?
1. How are lactic-acid bacteria used in fermentation? Please give three examples. 2. Name two species that are medically important in the lactic-acid bacteria group and a disease that is caused by each one. 3. Name two ways bacteria can produce hydrogen sulfide. What are the two enzymes important in those pathways? 4. What three tests can be done using a single SIM tube? 5. A firm acid clot can appear as a pink or white tube with a pink...
4. (10 pts) Lactic acid C3H603 is found in sour milk where it is produced by the action of lactobacilli in lactose or the sugar in milk. The pH of a 0.045 M solution of lactic acid was determined using a pH probe and found to be 2.63. a. Calculate the equilibrium constant for this acid. b. Had you not been given the pH of the acid and you had to measure it yourself, how would the method in part...
QUESTION 4 [10] Write briefly on the process of photosynthesis as it occurs in bacteria. QUESTION 5 [20] Discuss on the role of alcohol, lactic acid, and mixed acids during fermentation.
Yogurt is made by growing bacteria, such as Lactobacillus that produce lactic acid as they grow in a solution with sugar mik. The acid gives the mixture its sour flavor (and keeps your intestines healthy) (a). (1 point) What is the terminal electron acceptor used by Lactobacillus in this pathway? (b). (1 point) For each glucose molecule used by kdctobacillus this pathway, how many NADH molecules are generated? (c) (1 point) For each glucose molecule used by Lactobacillus this pathway,...
in Aspinho ISO: 1.9 DE 4. Describe how and why the ferric chloride test can be used to detect whether your reaction has gone to completion The main o salicyllic add act asa limotiug reattant to produce
Why would the answer be A? - 4. The molecule shown below is produced by Vibrio harveyi bacteria, as a precursor to a signalling molecule. Но он ТОН НО .. If the molecule was treated with aqueous acid, which one of the following molecules would be the product? OH HO HO
find the term isosbestic point.? [a. Explain why the isobestic point would be a poor choice of wavelength for determiningpKa? 5. Phenolphthalein is an indicator often used for weak acid-strong base titrations. The acid form of phenolphthalein is colorless and the base form is pink. Do you think the pKa of phenolphthalein would be determined using the same the method from this experiment to find the pKa for bromothymol blue? Explain why or why not? I dont need the answer...
Please answer 1-4 1 Discuss some difficulties one might encounter in differentiating bacteria on the basis of physiological tests 2. Hopefully, you noticed all the reminders to incubate the test tubes with loose Gaps. Why is this important? 3. How would you determine whether an organism can ferment other carbohydrates, such as mannitol? 4. What enzymes are involved in the following reactions: Urea hydrolysis- Hydrogen sulfide production- Casein hydrolysis- Indole production- Catalase-