PRESCOTT'S MICROBIOLOGY
11th Edition
ISBN: 2818440045677
Author: WILLEY
Publisher: MCG
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Textbook Question
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.
Use the multiple choice questions to identify what components of the redox loop would have to be in each numbered box for this organism to be able to produce ATP using this system. Do not worry about stoichiometry.
a) What should be in box 1?
MQ
MQH2
Electron
H+
b) What should be in box 2?
MQ
MQH2
Electron
H+
c) What should be in box 3?
MQ
MQH2
Electron
H+
d) What should be in box 4?
MQ
MQH2
Electron
H+
e) What should be in box 5?
MQ
MQH2
Electron
H+
f) What should be in box 6?
MQ
MQH2
Electron
H+
g) What should be in box 7?
MQ
MQH2
Electron
H+
h) What should be in box 8?
MQ
MQH2
Electron
H+
i) Which boxes in the diagram directly result in increasing the pH gradient? (select all that apply)
1
2
3
4
5
6
7
8
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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- 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?arrow_forwardWhat is the final electron acceptor for aerobic organisms? What does this mean?arrow_forwardNitrosomonas 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_forward
- If 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 final electron acceptor for anaerobic organisms? What does this mean?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
- What is the significance of the proton gradient that is established across the thylakoid membrane during electron transport in the thylakoid?arrow_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_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_forward
- Differentiate between nitrification and denitrification, and identify the electron donors and acceptors for eacharrow_forwardTOM A given enzyme is able to utilize five different substrates. The Km's have measured for each substrate. Which substrate is most likely the biochemi relevant one in the cell? In other words, which one is most likely the pred vivo substrate for this enzyme? (Choose the one best answer). Substrate 1 with KM= 4.7 × 10-1 M. Substrate 2 with Km = 1.5 × 10-2 M. Substrate 3 with KM = 1.5 x 10-8 M. × Substrate 4 with Km= 4.7 × 10-³ M Substrate 5 with KM = 4. 7 × 10-5 Marrow_forwardWhat is the terminal electron acceptor in aerobic organisms? O2 It depends on the organism. CO2 NAD+ FADarrow_forward
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