Microbiology: An Evolving Science (Fourth Edition)
4th Edition
ISBN: 9780393615098
Author: John W. Foster, Joan L. Slonczewski
Publisher: W. W. Norton & Company
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Question
Chapter 16.2, Problem 2TQ
Summary Introduction
To review:
The breakdown of food in the presence of oxygen is more as compared to in its absence.
Introduction:
Aerobic process is the process in which carbohydrates are broken down into simpler substances that produce energy in the presence of oxygen while anaerobic process does the same process in the absence of oxygen. Aerobic process results in
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Which of the following is true concerning the comparison of fermentation to aerobic cellular respiration?
a)
Both require oxygen.
b)
Fermentation extracts less energy.
c)
Fermentation produces only alcohol.
d)
All of the above are true.
e)
None of the above is true.
Lactic acid is an example of a common fermentation product. Fermentation
is reduced by electrons received
productions like this are produced when
from NADH.
a) 3-phosphoglyceraldehyde
Ob) glucose
Oc) ethanol
d) pyruvate
e) acetyl-CoA
What are the optimal fermentation conditions for producing succinic acid, citric acid, and lactic acid (conditions in terms of pH, temperature, nutrients (Nitrogen and Phosphorus), and aeration)?
Chapter 16 Solutions
Microbiology: An Evolving Science (Fourth Edition)
Ch. 16.1 - Prob. 1RQCh. 16.1 - Prob. 2RQCh. 16.1 - Prob. 3RQCh. 16.1 - Prob. 4RQCh. 16.1 - Prob. 5RQCh. 16.1 - Prob. 6RQCh. 16.1 - Prob. 7RQCh. 16.1 - Prob. 8RQCh. 16.1 - Prob. 9RQCh. 16.1 - Prob. 10RQ
Ch. 16.1 - Prob. 11RQCh. 16.1 - Prob. 12RQCh. 16.1 - Prob. 13RQCh. 16.1 - Prob. 14RQCh. 16.1 - Prob. 1TQCh. 16.1 - Prob. 2TQCh. 16.1 - Prob. 3TQCh. 16.2 - Prob. 1TQCh. 16.2 - Prob. 2TQCh. 16.3 - Prob. 1TQCh. 16.3 - Prob. 2TQCh. 16.3 - Prob. 3TQCh. 16.4 - Prob. 1TQCh. 16.4 - Prob. 2TQCh. 16.5 - Prob. 1TQCh. 16.5 - Prob. 2TQCh. 16.6 - Prob. 1TQCh. 16.6 - Prob. 2TQ
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Similar questions
- Which of the statements about alcohol producing fermentation is FALSE? a) Lactic acid may be produced as a byproduct b) It produces CO2 c) It allows the cell to continue producing ATP when oxygen is low d) It generates more ATP than aerobic respirationarrow_forwardPlease answer the following correctly: a) Would other substrates be as effective as glucose in alcoholic fermentation? Possible substrates: sucroce (table sugar- glucose and fructose disaccharide), honey (mainly fructose and glucose), corn syrup (fructose and sucrose), starch (glucose polymer in plants), saccharin, equal, splenda, fructose, maltose, pyruvate, stevia, agave nectar. b) Would fermentation rates change with different types of yeasts, for example, quick rise, champagne yeast using in wine making and candida milleri used in sourdough? c) What environmental conditions are optimum for alcoholic fermentation? what temperature ranges? What pH ranges? Do these environmental conditions have different effects on different strains or species of yeast? d) What is the maximum amount of ethyl alcohol that can be tolerated by yeast cells?arrow_forwardDefine the following, and clarify the differences between them A) Fermentation B) Aerobic respiration C) Anaerobic respirationarrow_forward
- Select all of the following that are false: a) Fermentation directly produces ATP. b) Fermentation allows glycolysis to continue. c) Fermentation allows cell respiration to continue.arrow_forwardThe purpose of fermentation reactions is: a) to provide more glucose for glycolysis b) to generate ketone bodies which may replace glucose b) to enhance the oxygen using ability of the electron transport chain d) to keep glycolysis going under low oxygen conditions by recycling NAD Fructose has a higher glycemic index than glucose. This is because: a) it is converted into glucose b) it stimulates gluconeogenesis c) its metabolism is unregulated d) it signals glucagon release Which of these molecules has a higher phosphoryl transfer potential than ATP? A) glucose-6-phosphate b) glucose-1-phosphate c) glyceraldehyde-3-phosphate d) 1,3-biphosphoglycerate (1,3-BPG) After vigorous exercise, the primary source of sore muscles is: a) acetaldehyde b) lactic acid c) glyceraldehyde-3-phosphate d) phosphoenolpyruvate How many pyruvate molecules are made from 1 glucose molecule during glycolysis? A) 1 b) 2 C) 3 D) 4arrow_forwardWhat is the overall purpose of fermentation? Explain the differences and similarities between two types of fermentation. Note the inputs and outputs of the reaction and the energy consumed,used or gained in the reaction.arrow_forward
- Describe the following chemicals require in fermentation medium a) Micronutrient b) Trace elementarrow_forwardName the two types of fermentation.arrow_forwardWhich of the following statements concerning fermentation is TRUE?a) Fermentation ultimately provides NAD+b) Fermentation requires oxygenc) Glucose is an important direct end-product of fermentationd) The F1FO ATP synthase is important for fermentatione) Proton motive force is used in fermentation Give typing answer with explanation and conclusionarrow_forward
- What is the difference between cellular respiration and fermentation? Select an answer. a) cellular respiration does not need oxygen, while fermentation needs oxygen b) cellular respiration needs oxygen, while fermentation does not need oxygen c) cellular respiration produces very little energy, while fermentation produces a lot of energy d) Almost all cells carry out fermentation, while few carry out cellular respirationarrow_forwardWhich of the following statements regarding fermentation is FALSE? disaccharides such as lactose must be hydrolyzed into monosaccharides before they can be broken down further ethanol can be a product of fermentation fermentation of glucose requires the enzyme glucase fernentation of lactose requires the enzyme lactase fermentation of sucrose requires the enzyme sucrase fermentation sometimes produces a gasarrow_forward1a) If E. coli can ferment lactose to form an acid and a gas, you expect the fermentation broth to be yellow and a bubble trapped in the Durham tube. a) True b) False 1b) What color would phenol red appear at pH 6.2? a) red b) orange c) yellow d) colorlessarrow_forward
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