Homework Answers
Ans-1- protons are pumped from mitochondrial matrix to inter membrane space as a result of this pH in the matrix rises while pH in the inter membrane space decreases. This result in the formation of electrochemical gradient that develop a proton motive force for the synthesis of ATP.
So option D ( formation of proton motive force) is correct.
Ans-2- oxygen has highest reduction potential than any other electron carrier and accept electrons from NADH and FADH2. This reduces the oxygen into water.
So option E (terminal electron acceptor) is correct
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In the electron transport chain, protons are pumped across the cell membrane. This results in Multiple...
What happens along an electron transport chain? What happens along an electron transport chain? Electrons are...
What happens along an electron transport chain?
What happens along an electron transport chain? Electrons are passed from a reducing agent to an oxidizing agent, releasing free energy at each step. Electrons are passed from molecule to molecule, gaining potential energy at each step. O Electrons store energy that can be used to break down sugar molecules. O Protons are pumped through ATP synthase, making ATP.
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...
27) Which one of the following best describes the electron transport chain? A) Electrons are passed...
27) Which one of the following best describes the electron transport chain? A) Electrons are passed from one carrier to another releasing a little energy at each B) Hydrogen atoms are added to CO2 to make an energy-rich compound. C) Electrons are pumped across a membrane by active transport. D) Glucose is broken down to a three-carbon compound 28) After completion of the citric acid cycle, most of the usable energy from the one molecule is in the form of...
-Which complex of electron transport chain does not have enough energy to pump protons out of...
-Which complex of electron transport chain does not have enough energy to pump protons out of the mitochondria? Complex 1, Complex 2, Complex 3, Complex 4 -Besides pyruvate, _______ from glycolysis is needed in a later stage of aerobic respiration. NADH, FADH2, COENZYME A, COENZYME Q -How much ATP is directly made from fermentation? 32, 0, 4, 2 -which enzyme of the citric acid cycle has the same 5 coenzymes as pyruvate dehydrogenase complex? succinate dehydrogenase, alpha ketoglutarate dehydrogenase, malate...
Question 37 (1 point) In cellular respiration, electrons are moved along a series of membrane proteins...
Question 37 (1 point) In cellular respiration, electrons are moved along a series of membrane proteins during the electron transport chain. If there was a mutation in the DNA coding for each of the proton pumps of the electron transport chain such that these proteins became non-functional, what would you predict to occur? NADH and FADH2 would have to donate their electrons directly to ATP synthase in order for ATP synthesis to occur. All electrons would have to be stripped...
Which two processes make up oxidative phosphorylation? A. Chemiosmosis and ATP synthesis B. Electron transport chain...
Which two processes make up oxidative phosphorylation? A. Chemiosmosis and ATP synthesis B. Electron transport chain and chemiosmosis C. Pyruvate oxidation and electron transport chain D. Proton motive force and chemiosmosis What is the final electron acceptor in the electron transport chain? A. FADH2 B. Water C. Oxygen D. NADH
Fill in the blanks regarding the electron transport chain and oxidative phosphorylation. Complex1 accepts electrons from...
Fill in the blanks regarding the electron transport
chain and oxidative phosphorylation.
Complex1 accepts electrons from NADH and uses coenzyme Q
to transport them to complex 3.
Complex 2 accepts electrons from FADH2 and uses coenzyme
q to transport them from complex 3 to complex 4.
The ATP synthase will transport 3H+ ions for every 2 ATP
produces.
This entire process occurs across the inner
mitochondrial membrane.
Fill in the blanks regarding the electron transport chain and oxidative phosphorylation
a. Draw out the electron transport chain in the order the electrons flow. b. Which are...
a. Draw out the electron transport chain in the order the electrons flow. b. Which are mobile carriers? c. Which proteins pump protons into the inter membrane space? d.Describe how the proton motive force is used to make ATP?
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...
Which of the following could explain why transfer of electrons from FADH2 to Coenzyme Q (CoQ)...
Which of the following could explain why transfer of electrons from FADH2 to Coenzyme Q (CoQ) is not coupled to proton transfer, but transfer from NADH to Coenzyme Q is? Select one: a. FADH2 donates more electrons than NADH to the electron transport chain. b. Because FADH2 has higher affinity for electrons than Coenzyme Q c. Because FADH2 is a higher energy carrier than NADH d. Because the transfer of electrons from FADH2 to CoQ does not release enough energy....
What happens along an electron transport chain?
What happens along an electron transport chain? Electrons are passed from a reducing agent to an oxidizing agent, releasing free energy at each step. Electrons are passed from molecule to molecule, gaining potential energy at each step. O Electrons store energy that can be used to break down sugar molecules. O Protons are pumped through ATP synthase, making ATP.
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...
27) Which one of the following best describes the electron transport chain? A) Electrons are passed from one carrier to another releasing a little energy at each B) Hydrogen atoms are added to CO2 to make an energy-rich compound. C) Electrons are pumped across a membrane by active transport. D) Glucose is broken down to a three-carbon compound 28) After completion of the citric acid cycle, most of the usable energy from the one molecule is in the form of...
Question 37 (1 point) In cellular respiration, electrons are moved along a series of membrane proteins during the electron transport chain. If there was a mutation in the DNA coding for each of the proton pumps of the electron transport chain such that these proteins became non-functional, what would you predict to occur? NADH and FADH2 would have to donate their electrons directly to ATP synthase in order for ATP synthesis to occur. All electrons would have to be stripped...
Fill in the blanks regarding the electron transport
chain and oxidative phosphorylation.
Complex1 accepts electrons from NADH and uses coenzyme Q
to transport them to complex 3.
Complex 2 accepts electrons from FADH2 and uses coenzyme
q to transport them from complex 3 to complex 4.
The ATP synthase will transport 3H+ ions for every 2 ATP
produces.
This entire process occurs across the inner
mitochondrial membrane.
Fill in the blanks regarding the electron transport chain and oxidative phosphorylation
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...
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