Microbiology : Introduction - Access
12th Edition
ISBN: 9780133905526
Author: Tortora
Publisher: PEARSON
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Textbook Question
Chapter 5, Problem 8MCQ
Which culture produces the most ATP?
Use the following choices to answer questions.
- a. E. coli growing in glucose broth at 35°C with O2 for 5 days
- b. E. coli growing in glucose broth at 35°C without O2 for 5 days
- c. both a and b
- d. neither a nor b
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Why is Phenol red being utilized in MacConkey agar? Choose among the choices and further explain it.A. Inhibit microscopic organismsB. Detect the production of gas by-productsC. Conduct the sulfate reduction testD. Detect the acid reaction of lactose fermentation
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attention to the split time axis with different time scales.
Glucose generation time =
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Acetate generation time =
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1010
109
108
107
106
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15 20 25 30
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log of numbers of bacteria
LO
The diagram shows the growth curve of Escherichia coli in a suspension culture containing glucose and lactose. Optical density is used to measure the concentration of bacteria in the suspension culture.
Use the image to answer the question.
Which statement BEST supports the information in the graph?
A.
E. coli metabolizes lactose and glucose.
B.
E. coli metabolizes glucose first, then lactose.
C.
E. coli metabolizes lactose first, then glucose.
D.
E. coli metabolizes lactose and glucose at the same time.
Chapter 5 Solutions
Microbiology : Introduction - Access
Ch. 5 - Prob. 1RCh. 5 - DRAW ITUsing the diagrams below, show each of the...Ch. 5 - DRAW IT An enzyme and substrate are combined. The...Ch. 5 - Define oxidation-reduction, and differentiate the...Ch. 5 - There are three mechanisms for the phosphorylation...Ch. 5 - All of the energy-producing biochemical reactions...Ch. 5 - Fill in the following table with the carbon source...Ch. 5 - Write your own definition of the chemiosmotic...Ch. 5 - Why must NADH be reoxidized? How does this happen...Ch. 5 - NAME IT What nutritional type is a colorless...
Ch. 5 - Which substance in the following reaction is being...Ch. 5 - Which of the following reactions produces the most...Ch. 5 - Prob. 3MCQCh. 5 - Which of the following compounds has the greatest...Ch. 5 - Prob. 5MCQCh. 5 - Prob. 6MCQCh. 5 - Which culture produces the most lactic acid? Use...Ch. 5 - Which culture produces the most ATP? Use the...Ch. 5 - Which culture uses NAD+? Use the following choices...Ch. 5 - Which culture uses the most glucose? Use the...Ch. 5 - Explain why, even under ideal conditions,...Ch. 5 - The following graph shows the normal rate of...Ch. 5 - Compare and contrast carbohydrate catabolism and...Ch. 5 - How much ATP could be obtained from the complete...Ch. 5 - The chemoautotroph Acidithiobacillus can obtain...Ch. 5 - Haemophilus influenzae requires hemin (X factor)...Ch. 5 - The drug Hivid, also called ddC, inhibits DNA...Ch. 5 - The bacterial enzyme streptokinase is used to...
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