Prescott's Microbiology
11th Edition
ISBN: 9781260211887
Author: WILLEY, Sandman, Wood
Publisher: McGraw Hill
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Chapter 23.3, Problem 3MI
What are the two sources of electrons for the H. modesticaldum electron transport chain?
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Explain why electron transport in purple photosynthetic bacteria follows a circular path.
5.
a) The cell creates molecules of NADH and FADH2to use in the electron transport chain as they are electron carrier molecules. The electron transfers from these moleculesdrives the movement of what molecule across the mitochondrial membrane?b) What is chemiosmosis?c) How does the cell use chemiosmosis to drive overcome the thermodynamic barrier of bringing phosphates close togehter to create ATP?d) What steps of oxidative phosphorylation are in the cytosol and which are in the mitochondria?e) Cellular respiration can be controlled at the post-translational level. What does this mean, using GLUT as an example? Why is post-translational control of GLUT evolutionarilyadaptive over transcriptional control?f) How does establishment of equillibria of various molecules control metabolic reactions? What are three ways high ATP in the cell control cellular respiration?g) Why are the enzymes controlling the initial steps of various biochemical pathways are targeted by allosteric control?
What does electron transport in anammox bacteria have incommon with electron transport in purple sulfur bacteria?
Chapter 23 Solutions
Prescott's Microbiology
Ch. 23.1 - MICRO INQUIRY Refer to table 24.2 and determine...Ch. 23.1 - MICRO INQUIRY Why do Mycobacterium spp. have...Ch. 23.1 - Prob. 3MICh. 23.1 - Prob. 1.1CCCh. 23.1 - Prob. 1.2CCCh. 23.1 - Retrieve, Infer, Apply Why are actinobacteria of...Ch. 23.1 - Prob. 1.4CCCh. 23.1 - Retrieve, Infer, Apply Compare the morphology and...Ch. 23.1 - Prob. 1.6CCCh. 23.1 - Prob. 1.7CC
Ch. 23.1 - Prob. 1.8CCCh. 23.1 - Retrieve, Infer, Apply List the distinguishing...Ch. 23.1 - Prob. 2.2CCCh. 23.1 - Prob. 2.3CCCh. 23.1 - Retrieve, Infer, Apply Describe three ways in...Ch. 23.1 - Briefly describe the defining properties of genera...Ch. 23.1 - Prob. 2.6CCCh. 23.1 - Examine the ingredients list on a commercial...Ch. 23.2 - What growth or survival advantage might this type...Ch. 23.2 - What is the net yield of ATP for each glucose that...Ch. 23.2 - Prob. 3MICh. 23.2 - Prob. 1CCCh. 23.2 - Prob. 2CCCh. 23.2 - Prob. 3CCCh. 23.2 - Prob. 4CCCh. 23.2 - How are various species of Streptococcus...Ch. 23.2 - Of what practical importance are leuconostocs?...Ch. 23.2 - What is the difference between -hemolysis and...Ch. 23.3 - The presence of an electron transport chain in a...Ch. 23.3 - In addition to its Gram-staining characteristics,...Ch. 23.3 - What are the two sources of electrons for the H....Ch. 23.4 - Prob. 1CCCh. 23.4 - Suggest why C. tetani uses a sodium motive force...Ch. 23.4 - Prob. 3CCCh. 23.4 - What kind of genetic evidence, in addition to 16S...Ch. 23 - Prob. 1RCCh. 23 - Prob. 2RCCh. 23 - Prob. 3RCCh. 23 - Prob. 4RCCh. 23 - Prob. 5RCCh. 23 - Prob. 6RCCh. 23 - Prob. 7RCCh. 23 - Prob. 8RCCh. 23 - Prob. 9RCCh. 23 - Prob. 10RCCh. 23 - Even though actinobacteria are high G + C...Ch. 23 - Given that mycolic acids are essential for...Ch. 23 - Prob. 3ALCh. 23 - Prob. 4ALCh. 23 - Prob. 5ALCh. 23 - What physiological properties might account for...Ch. 23 - S. aureus strains that are resistant to...Ch. 23 - Prob. 8AL
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- Nitrosomonas is a photophobic (light-avoiding) chemoautotrophic bacterium that converts ammonia into nitrite. Explain how the organism can fix CO2 via the Calvin cycle in the absence of sunlight.arrow_forwardIf nitrate is used as the terminal electron acceptor in the electron transport system of a bacterium,how many ATPs could be synthesized?arrow_forwardWhat is the significance of the proton gradient that is established across the thylakoid membrane during electron transport in the thylakoid?arrow_forward
- If photosynthesizing green algae are provided with CO2 containing heavy oxygen (18O), later analysis will show that all of the following molecules produced by the algae contain 18O EXCEPT a) ribulose bisphosphate (RuBP) b) glyceraldehyde 3-phosphate (G3P) c)O2 d)3-phosphoglycerate e)glucosearrow_forwardThe common name for species like Anabena is blue-green algae. This group of bacteria are capable of photosynthesizing. Do they contain chloroplasts? Explain.arrow_forwardWhat does the following figure represent? The last steps of anaerobic cellular respiration. b) Oxidative phosphorylation. c) The electron transport chain (ETC) only. d) Chemiosmosis only. e) The light reactions of photosynthesis.arrow_forward
- Cyanide is a chemical that irreversibly binds to (i.e. prevents the functioning of) the enzyme cytochrome oxidase, an important enzyme in the electron transport system. a) Explain, at the cellular level, why cyanide is a lethal chemical. b) Suggest at least one other cellular consequence of cyanide (i.e. what else happens to the electron transport system when cyanide is present), and an explanation of this effect.arrow_forwardYeast are facultative anaerobic organisms that can make ATP by aerobic respiration if oxygen is present, but are also capable of switching to fermentation under anaerobic conditions. For thousands of years, humans have used yeast, such as Saccharomyces cervesisiae, to ferment grapes (starch sugar) to make wine (alcoholic beverage). Four batches of wine were made following the contents and conditions listed in the table below, Contents and Conditions of Four Batches of Wine Yeast Solution Water Grape Solution Batch Added Container (L) (L) (L) Lid 1 40 0.0 8 оpen 2 40 0.2 8 closed 40 0.2 8. оpen 4 40 0.2 closed 9. The yeast (Saccharomyces cerevisiae) would produce the greatest amount of ATP is the batch of wine numbered 1 4 D. The highest alcohol (ethanol) content would be found in the batch of wine numbered 02 3arrow_forwardDescribe the process of the electron transport chain. Include the role of the poton motive force, electron carriers, terminal electron acceptor. Where is the ETC located in euakryotes? where is it located in some prokaryotes? Do all organisms possess ETC?arrow_forward
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