If the electron transport chain is actively pumping H+
across
the membrane, what are the conditions in the inner membrane space?
a. Acidic and positive
b. Acidic and negative
c. Basic and positive
d. Basic and negative
H+ has to be transported, therefore the inner membrane must be the opposite of H+, i.e basic and negative.
If the electron transport chain is actively pumping H+ across the membrane, what are the conditions in the inner membran...
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
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...
Matching options: Cytosol, Electron transport chain,
mitochondrial matrix, ATP synthetase
... outer membrane inner membrane rotor ADP ATP stator
QUESTION 40 Where are the proteins of the electron transport chain located in prokaryotic cells that respire A. Mitochondrial inner membrane B. Plasma membrane C. Cytosol D. Mitochondrial intermembrane space E. Mitochondrial matrix
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...
In mitochondria, the electron transport chain pumps H+ ions from the matrix into the intermembrane space. In chloroplasts, the electron transport chain pumps H+ ions from the thylakoid space into the stroma o outside the chloroplast into the stroma the chloroplast outer membrane into the intermembrane space the stroma into the matrix
QUESTION 40 Where are the proteins of the electron transport chain located in prokaryotic cells that respire A Mitochondrial inner membrane B. Plasma membrane OC. Cytosol D. Mitochondrial intermembrane space E Mitochondrial matrix
Which of the following statements is(are) TRUE about oxidative phosphorylation? 1. Electron transport provides energy to pump protons into the intermembrane space. II. An electrochemical gradient is formed across the inner mitochondrial membrane. III. Potassium and sodium ions form an ionic gradient across the inner mitochondrial membrane. IV. Complexes I, II, III, IV actively transport protons into the intermembrane space during electron transport 1, II, III, IV III, IV II, III, IV 1,1V II, IV
Which complex in the electron transport chain does not contribute to the proton gradient across the mitochondrial membrane? A. Complex I B. Complex IV C. Complex II D. Complex III Which statement regarding the mitochondrial electron transport chain and oxidative phosphorylation is true? A. Ubiquinone and the F zero subunit of ATP synthase are peripheral membrane proteins. B. Complexes I, II, III, and IV all are proton pumps. C. The final electron acceptor is water. D. Complex II is considered...
In the electron transport chain, protons are pumped across the cell membrane. This results in Multiple Choice 0 the reduction of NADH. 0 the creation of water. 0 the loss of electrons. O the formation of a proton motive force. 0 the release of CO2 In aerobic respiration, oxygen acts as 1 Multiple Choice 0 a coenzyme. 0 an electron carrier in the ETC. 0 an ATP synthase. 0 a reducing agent. • the terminal electron acceptor.