What is the main purpose of the electron transport chain? A. To create a gradient of...
What is the main purpose of the electron transport chain?
A. To create a gradient of H+ across the inner membrane of the mitochondria that fuels ATP synthesis
B. To move electrons down the suite of four protein complexes
C. To produce water
D. To facilitate fermentation when oxygen is limited
Homework Answers
The main purpose of electron transport chain is to creat a gradient of H+ across the inner membrane of the mitochondria that fuels ATP synthesis.
ETC has four complexes that are involved in oxidation and reduction reaction. When electrons are moving from one complex to ubiquitin then free energy is released in form of active transport of protons across the inner mitochondrial membrane.
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What is the main purpose of the electron transport chain?
A. To create a gradient of...
Cellular respiration: The Electron Transport Chain The breakdown of glucose ends during the Krebs cydle; however,...
Cellular respiration: The Electron Transport Chain The breakdown of glucose ends during the Krebs cydle; however, it is important to note that the energy previously contained in glucose is mostly stored in NADH and FADHz. In the last step of celular respiration, the high-energy electrons within NADH and FADH2 are passed within a set of proteins found in the inner membrane of the mitochondrion, collectively known as the electron transport chain. The electrons provide the energy to create ATP, which...
is required to accept electron 17. At the very end of the electron transport chain in...
is required to accept electron 17. At the very end of the electron transport chain in the mitochondria, final electron acceptor. A. carbon dioxide B. ADP C. ATP Synthase Doxygen E. NAD+ 18. Select the correct flow of energy transfer during cellular respiration. A. NADHH gradient glucose → ATP B glucose → NADH H gradient ATP C. glucose H gradient → NADH ATP D. glucose ATPH gradient → NADH 19. If a muscle cell has low levels of oxygen, which...
Which of the following best describes what occurs during the electron transport chain? The diffusion of...
Which of the following best describes what occurs during the electron transport chain? The diffusion of H+s provides the energy needed to make electrons move through the electron transport chain. Once the electrons reach oxygen, ATP is produced. O An H+ gradient is used to place oxygen at the end of the electron transport chain. The oxygen then pulls electrons towards it, which results in the synthesis of ATP. The energy of moving electrons is used to generate a proton...
113) Adenosine triphosphate is generated during a) glycolysis b) the krebs cycle c) the electron transport chain re...
113) Adenosine triphosphate is generated during a) glycolysis b) the krebs cycle c) the electron transport chain reaction d) all of the above c) band only 114) During which of the following processes is the greatest amount of ATP produced: Osmosis peptidoglycan synthesis glycolysis electron transport chain reactions lipidolysis 115) The site of the bacterial cell where ATP is produced is the cell wall cell membrane mitochondria nuclear region bande 116) ATP syhtnase: c) is the enzyme the breaks down...
The electron transport chain consists of protein complexes embedded in the inner mitochondrial membrane, where it...
The electron transport chain consists of protein complexes embedded in the inner mitochondrial membrane, where it generat a proton gradient by a series of oxidation-reduction, or redox, reactions. Although all of the stages of cellular respiration (glycolysis, the citric acid cycle, and the electron transport chain) are necessary for life, the electron transport chain is sometimes called the most important stage. First complete the sentence, then answer the question. The electron transport chain uses the transfer of protons between protein...
2. What would happen to each of the following if reduced the supply of glucose to...
2. What would happen to each of the following if reduced the supply of glucose to cells by 50%? You may assume that the cell will NOT switch to an alternative energy source. Briefly explain why for each. A. The level of glycolysis activity. B. The level of Krebs Cycle activity. C. The level of activity in the electron transport chain in the mitochondria. D. The size of the proton gradient across the inner mitochondrial membrane. E. The rate of...
The electron transport chain(ETC), or respiratory chain, is linked to proton movement and ATPsynthesis....
The electron transport chain (ETC), or respiratory chain, is linked to proton movement and ATP synthesis. Select the statements that accurately describe the electron transport chain. Choose all that apply.Prosthetic groups, such as iron-sulfur centers, are directly involved with electron transfer. The reactions of the ETC take place in the outer membrane of mitochondria. Electron carriers in the mitochondrial matrix include ubiquinone (coenzyme Q), FMN, and cytochrome c. The outer membrane of mitochondria is readily permeable to small molecules and hydrogen ions. Electrons generated...
The electron transport chain (ETC), or respiratory chain, is linked to proton movement and ATP synthesis....
The electron transport chain (ETC), or respiratory chain, is linked to proton movement and ATP synthesis. Select the statements that accurately describe the electron transport chain Choose all that apply. Electron transfer in the ETC is coupled to proton transfer from the matrix to the intermembrane space The outer membrane of mitochondria is readily permeable to small molecules and hydrogen ions. Prosthetic groups, such as iron-sulfur centers, are directly involved with electron transfer. Electron carriers in the ETC include ubiquinone...
In mitochondria, a proton gradient is established by the movement of electrons through the electron transport...
In mitochondria, a proton gradient is established by the movement of electrons through the electron transport chain. Protons are moved to the intermembrane space against the concentration gradient and the flow back to the matrix via facilitated diffusion using the ATP synthase. Describe how this proton flow contributes to ATP synthesis and the role played by aspartic acid in this process.
please help! 51. Which type of inorganic complexes are found in the electron transport chain? A)...
please help!
51. Which type of inorganic complexes are found in the electron transport chain? A) Gold-Sulfur (Au-S) B) Titanium-Sulfur (Ti-S) C) Silver-Sulfur (Ag-S) D) Iron-Sulfur (Fe-S) 52. Which of the following statement does not support the chemiosmosis model? A) Intact mitochondria are necessary for ATP synthesis. B) ATP is synthesized when a pH gradient is imposed on mitochondria in absence of NADH C) In cells without mitochondria significant ATP synthesis did not occur D) PH outside the mitochondria is...
Cellular respiration: The Electron Transport Chain The breakdown of glucose ends during the Krebs cydle; however, it is important to note that the energy previously contained in glucose is mostly stored in NADH and FADHz. In the last step of celular respiration, the high-energy electrons within NADH and FADH2 are passed within a set of proteins found in the inner membrane of the mitochondrion, collectively known as the electron transport chain. The electrons provide the energy to create ATP, which...
is required to accept electron 17. At the very end of the electron transport chain in the mitochondria, final electron acceptor. A. carbon dioxide B. ADP C. ATP Synthase Doxygen E. NAD+ 18. Select the correct flow of energy transfer during cellular respiration. A. NADHH gradient glucose → ATP B glucose → NADH H gradient ATP C. glucose H gradient → NADH ATP D. glucose ATPH gradient → NADH 19. If a muscle cell has low levels of oxygen, which...
Which of the following best describes what occurs during the electron transport chain? The diffusion of H+s provides the energy needed to make electrons move through the electron transport chain. Once the electrons reach oxygen, ATP is produced. O An H+ gradient is used to place oxygen at the end of the electron transport chain. The oxygen then pulls electrons towards it, which results in the synthesis of ATP. The energy of moving electrons is used to generate a proton...
113) Adenosine triphosphate is generated during a) glycolysis b) the krebs cycle c) the electron transport chain reaction d) all of the above c) band only 114) During which of the following processes is the greatest amount of ATP produced: Osmosis peptidoglycan synthesis glycolysis electron transport chain reactions lipidolysis 115) The site of the bacterial cell where ATP is produced is the cell wall cell membrane mitochondria nuclear region bande 116) ATP syhtnase: c) is the enzyme the breaks down...
The electron transport chain consists of protein complexes embedded in the inner mitochondrial membrane, where it generat a proton gradient by a series of oxidation-reduction, or redox, reactions. Although all of the stages of cellular respiration (glycolysis, the citric acid cycle, and the electron transport chain) are necessary for life, the electron transport chain is sometimes called the most important stage. First complete the sentence, then answer the question. The electron transport chain uses the transfer of protons between protein...
2. What would happen to each of the following if reduced the supply of glucose to cells by 50%? You may assume that the cell will NOT switch to an alternative energy source. Briefly explain why for each. A. The level of glycolysis activity. B. The level of Krebs Cycle activity. C. The level of activity in the electron transport chain in the mitochondria. D. The size of the proton gradient across the inner mitochondrial membrane. E. The rate of...
The electron transport chain (ETC), or respiratory chain, is linked to proton movement and ATP synthesis. Select the statements that accurately describe the electron transport chain Choose all that apply. Electron transfer in the ETC is coupled to proton transfer from the matrix to the intermembrane space The outer membrane of mitochondria is readily permeable to small molecules and hydrogen ions. Prosthetic groups, such as iron-sulfur centers, are directly involved with electron transfer. Electron carriers in the ETC include ubiquinone...
please help!
51. Which type of inorganic complexes are found in the electron transport chain? A) Gold-Sulfur (Au-S) B) Titanium-Sulfur (Ti-S) C) Silver-Sulfur (Ag-S) D) Iron-Sulfur (Fe-S) 52. Which of the following statement does not support the chemiosmosis model? A) Intact mitochondria are necessary for ATP synthesis. B) ATP is synthesized when a pH gradient is imposed on mitochondria in absence of NADH C) In cells without mitochondria significant ATP synthesis did not occur D) PH outside the mitochondria is...
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