Concepts of Biology
1st Edition
ISBN: 9781938168116
Author: Samantha Fowler, Rebecca Roush, James Wise
Publisher: OpenStax College
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 4, Problem 2ACQ
Figure 4.15 Cyanide inhibits cytochrome c oxidase, a component of the electron transport chain. If cyanide poisoning occurs, would you expect the pH of the intermembrane space to increase or decrease? What affect would cyanide have on ATP synthesis?
Figure 4.15 (a) The electron transport chain is a set of molecules that supports a series of
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Please answer this question in detail because I don't understand it. Thank you.
Which of the following best describes the role of chemiosmosis in oxidative phosphorylation?
(A) Chemiosmosis is the movement of electrons down their electrochemical gradient, which generates energy in the electron transport chain.
(B) Chemiosmosis is the chemical breakdown of ATP into ADP and inorganic phosphate.
(C) Chemiosmosis is the movement of chemicals dissolved in water down their concentration gradient, across the mitochondrial membrane.
(D) Chemiosmosis is the chemical breakdown of water into hydrogen and oxygen ions at the final stage of the electron transport chain.
(E) Chemiosmosis is the movement of ions down their electrochemical gradient, which generates ATP.
The graph shows how the free‑energy change for the hydrolysis of ATP varies as a function of Mg2+ concentration. Note that pMg = –log[Mg2+].
What does the graph tell you about the relationship between Mg2+ concentration and ATP hydrolysis?
What is the mechanism that explains the relationship between Mg2+ concentration and ATP hydrolysis?
Which of the following statements are true?For each, explain why or why not.(a) All coenzymes are electron-transfer agents.(b) Coenzymes do not contain phosphorus or sulfur.(c) Generating ATP is a way of storing energy.
Chapter 4 Solutions
Concepts of Biology
Ch. 4 - Figure 4.6 Look at each of the processes shown and...Ch. 4 - Figure 4.15 Cyanide inhibits cytochrome c oxidase,...Ch. 4 - Figure 4.16 Tremetol, a metabolic poison found in...Ch. 4 - Which of the following is not an example of an...Ch. 4 - Which of the following is not true about enzymes?...Ch. 4 - Energy is stored long-term in the bonds of _____...Ch. 4 - The energy currency used by cells is _____. a. ATP...Ch. 4 - The glucose that enters the glycolysis pathway is...Ch. 4 - What do the electrons added to NAD do? a. They...Ch. 4 - Chemiosmosis involves a. the movement of electrons...
Ch. 4 - Which of the following fermentation methods can...Ch. 4 - The cholesterol synthesized by cells uses which...Ch. 4 - Beta oxidation is ______. a. the breakdown of...Ch. 4 - Does physical exercise to increase muscle mass...Ch. 4 - Explain in your own terms the difference between a...Ch. 4 - With regard to enzymes, why are vitamins and...Ch. 4 - Both prokaryotic and eukaryotic organisms carry...Ch. 4 - We inhale oxygen when we breathe and exhale carbon...Ch. 4 - When muscle cells run out of oxygen, what happens...Ch. 4 - Would you describe metabolic pathways as...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Since astronauts in orbit are apparently weightless, a clever method of measuring their masses is needed to mon...
College Physics
Match the people in column A to their contribution toward the advancement of microbiology, in column B. Column ...
Microbiology: An Introduction (13th Edition)
Explain how the behavior of homologous chromosomes in meiosis parallels Mendels law of segregation for autosoma...
Genetic Analysis: An Integrated Approach (3rd Edition)
14. An experienced goldfish breeder receives two unusual male goldfish. One is black rather than gold, and the ...
Genetic Analysis: An Integrated Approach (2nd Edition)
One isomer of methamphetamine is the addictive illegal drug known as crank. Another isomer is a medicine for si...
Campbell Essential Biology (7th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Figure 7.12 Cyanide inhibits cytochrome c oxidase, a component of the electron transport chain. If cyanide poisoning occurs, would you expect the pH of the intermembrane space to increase or decrease? What effect would cyanide have on ATP synthesis?arrow_forwardMuch of our understanding of ATP synthase is derived from research on aerobic bacteria. What makes these organisms useful for this research? Where do the reactions of glycolysis, the citric acid cycle, and the electron-transport chain occur in these organisms?arrow_forwardCyanide inhibits cytochrome c oxidase, a component of the electron transport chain. If cyanide poisoning occurs, would you expect the pH of the intermembrane space to increase or decrease? What effect would cyanide have on ATP synthesis?arrow_forward
- Discuss the composition of the transition state for the formation of ATP by ATP Synthase. a) Where is the active site for this enzyme located? b) How are the amino acid side chains from the α and β subunits of ATP Synthase involved? c) Discuss the importance of Mg+2 in the mechanism of this enzyme.arrow_forwardFigure 7.11 Dinitrophenol (DNP) is an "uncoupler" that makes the inner mitochondrial membrane "leaky" to protons. It was used until 1938 as a weight- loss drug. What effect would you expect DNP to have on the change in pH across the inner mitochondrial membrane? Why do you think this might be an effective weight-loss drug? Intermembrane space Mitochondrial matrix ATP Synthase ADP Inner mitochondrial membrane ATP Figure 7.11 ATP synthase is a complex, molecular machine that uses a proton (H) gradient to form ATP from ADP and inorganic phosphate (Pi). (Credit: modification of work by Klaus Hoffmeier)arrow_forwardCytochrome B5 is one of many cytochrome molecules in Electron Transport Chain. How would electron transport be affected if the cell had a defective cytochrome B5 gene and did not produce functional cytochrome B5? (It will help to discuss the function of cytochromes in Electron Transport Chain in your answer!)arrow_forward
- The following statements describe the path of electrons from NADH through the electron transport chain. Please arrange them in order: Cytochrome c (Fe2+) carries electrons to Complex IV. Cytochrome c (Fe3+) is reduced to cytochrome c (Fe2+) QH2 carries electrons to Complex III Oxygen is reduced to water Ubiquinone (coenzyme Q) is reduced to ubiquinol (QH2)arrow_forwardWhich of these molecules associated with electron transport is in the reduced state? Choose from the following: (A) cytochrome a3+++ (b) cytochrome a3++arrow_forwardDCCD (diocyclohexylcarbodiimide) inhibits oxidative phosphorylation when the substrate is mitochondrial NADH. DCCD is a drug that binds to ATP synthase and blocks proton transport through the ion channel. a) Explain what the consequences of DCCD on cellular energy production are. b) Suggest at least one other cellular effect of DCCD and explain this effect.arrow_forward
- A proton gradient is created during the electron transport chain using the energy released from the oxidation of NADH and FADH2. The protons then cross the membrane through ATP synthase down their electrochemical gradient, and ATP is produced. This is an example of A) energy coupling B) cotransport C) allosteric regulation.arrow_forwardHow much fat (in grams) would the body have to burn to produce the daily minimum requirement of 40 kg ATP from ADP and phosphate? Assume that: 1. The fat is metabolized completely to water and carbon dioxide. 2. The energy that is released can be used entirely for ATP production. 3. Complete oxidation of 1 g of fat to water and CO2 releases 9 kcal or 37 kJ. 4. The Delta G for ATP hydrolysis is -30.5 kJ/mol. You will have to look up one more value online to answer this question, but you do not need to know anything about lipid metabolism. A) approx. 16 to 17 g of fat B) approx. 65 to 66 g of fat C) approx 22 to 23 kg of fat D) approx. 267 to 268 g of fat E) approx. 5 to 6 kg of fatarrow_forwardWhat is the direct mechanism of ATP synthesis during the electron transport phase of cellular respiration? (what is the potential energy source that drives ATP production?) b) Why is oxygen needed for this phase? c) What is the role of ATP synthasearrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Anaerobic Respiration; Author: Bozeman Science;https://www.youtube.com/watch?v=cDC29iBxb3w;License: Standard YouTube License, CC-BY