Homework Answers
Answer
The higher concentration of protons in the inner mitochondrial membrane and a lower concentration of protons in matrix ,because of proton gradient developed across inner mitochondrial membrane with higher concentration of protons and relatively lower amount of protons in matrix.This gradient shows stroed form of energy and this energy is used in making ATP molecules from ADP.
Answer J
As proton flow through the ATP synthase complex in the inner membrane ,energy is released and exploited to combine ADP and inorganic phosphate and make ATP.
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The high concentration of protons in the inner mitochondrial space relative to the mitochondrial matrix represents...
Which of the following conditions would provide the most favorable conditions for the transport of protons...
Which of the following conditions would provide the most favorable conditions for the transport of protons from the mitochondrial matrix to the intermembrane space, in the absence of electron transport? proton gradient (with a higher proton concentration in the intermembrane space than in the mitochondrial matrix) and high ATP/low ADP in the matrix. proton gradient (with a higher proton concentration in the intermembrane space than in the mitochondrial matrix) and low ATP/high ADP in the matrix. proton gradient (with a...
6) What protein complex in the inner mitochondrial membrane allows protons to return to the matrix?...
6) What protein complex in the inner mitochondrial membrane allows protons to return to the matrix? ONADH dehydrogenase FoF1 porin electron transport carriers cytochrome 47) Which of the following compounds inhibits the pyruvate dehydrogenase (2pts) complex? O FAD NAD+ □ ADP acetyl COA 48) The acetyl group of acetyl CoA is transferred to oxaloacetate by the enzyme citrate synthase. OTrue (2pts) False
8. The movement of protons out of the mitochondrial matrix establishes an electrochemical H gradient across...
8. The movement of protons out of the mitochondrial matrix establishes an electrochemical H gradient across the inner mitochondrial membrane. The electrochemical potential of this gradient is harnessed to synthesize ATP. This is known as the (A) Hydrophobic effect IqChemiosmotic theory (B) Acid catalysis (0) Michaelis-Menten mechanism _9. Which of the following statements about mitochondria and their lon and metabolite transporters is FALSE? (A) Controlled impermeability of the inner mitochondrial membrane to most ions and metabolites allows for the generation...
Imagine that there is a mechanism that allows protons to re-enter the mitochondrial matrix without the...
Imagine that there is a mechanism that allows protons to re-enter the mitochondrial matrix without the coupled phosphorylation of ADP. What would happen to the energy associated with the proton re-entering?
Q2. The release of ATP by the beta subunit is most directly dependent on: Select ONE...
Q2.
The release of ATP by the beta subunit is most directly
dependent on:
Select ONE option:
1. the flow of protons from the intermembrane space to the
matrix.
2. the rotation of the c-ring in the membrane.
3. the passage of electrons along the electron transport
chain.
4. a conformational change in the beta subunit.
Q3.
What defines the direction of rotation of the c-ring in the F0
complex?
(Select ALL that apply.)
1. Amino acids side chains in...
6. Electron movement results in the establishment of a proton gradient across the inner mitochondrial membrane....
6. Electron movement results in the establishment of a proton gradient across the inner mitochondrial membrane. The proton motive force then provides the energy for ATP formation. a. How are protons shifted from the matrix to the intramembrane space? b. How is the proton gradient harnessed for ATP formation? c. How does ATP reach the cellular compartment/s where biosynthesis is occurring?
FUework Chapter 03. Energy. Chemical Reactions, and Cellular R i Saved Required information 1 2 The mitochondrial e...
FUework Chapter 03. Energy. Chemical Reactions, and Cellular R i Saved Required information 1 2 The mitochondrial electron transport system moves electrons from a donor molecule to a receptor molecule, which in the process drives a proton (H+) pump. In order to establish a proton gradient, the protons accumulate in Part 1 of 3 O the outer membrane the Intermembrane space 3.57 O the matrbx points O the cristae elook 3. How does the proton (H+) gradient created by the...
Phenylketonuria is the result of a: mutation in a non-competitive inhibitor of the enzyme phenylalanine hydroxylase....
Phenylketonuria is the result of a: mutation in a non-competitive inhibitor of the enzyme phenylalanine hydroxylase. buildup of the sugar lactose. buildup of the amino acid tyrosine. mutation in an activator of the enzyme phenylalanine hydroxylase. mutation that alters the shape of the enzyme phenylalanine hydroxylase. protons pumped into the intermembrane space by _____________ rush back into the mitochondrial matrix through channels (ATP Synthase) in the inner mitochondrial membrane. As the protons pass through, the force of their flow fuels...
You have generated two sets of vesicles, both with bacteriorhodopsin (which pumps protons out of bacteria...
You have generated two sets of vesicles, both with bacteriorhodopsin (which pumps protons out of bacteria in response to light) and the mitochondrial F1 ATPase inserted into the membranes of the vesicles. In both cases, the parts of the proteins that normally face the outside of the cell or the mitochondrial intermembrane space are inside the vesicles, and protons, ADP and inorganic phosphate are outside the vesicles. Both sets of vesicles are incubated with light, but one set also has...
In redox reactions Protons are transferred from one molecule to another One substance loses electrons and...
In redox reactions Protons are transferred from one molecule to another One substance loses electrons and the other gains electrons A substance that loses electrons is reduced, while a substance e that gains electrons are oxidized B and c are both correct Which process in eukaryotic cells will proceed normally whether oxygen (O2) is present of not? Electron transport Glycolysis The citric acid cycle Oxidative phosphorylation Chemiosmosis How many carbon atoms are fed into the cirtic acid cycle as a...
Which of the following conditions would provide the most favorable conditions for the transport of protons from the mitochondrial matrix to the intermembrane space, in the absence of electron transport? proton gradient (with a higher proton concentration in the intermembrane space than in the mitochondrial matrix) and high ATP/low ADP in the matrix. proton gradient (with a higher proton concentration in the intermembrane space than in the mitochondrial matrix) and low ATP/high ADP in the matrix. proton gradient (with a...
6) What protein complex in the inner mitochondrial membrane allows protons to return to the matrix? ONADH dehydrogenase FoF1 porin electron transport carriers cytochrome 47) Which of the following compounds inhibits the pyruvate dehydrogenase (2pts) complex? O FAD NAD+ □ ADP acetyl COA 48) The acetyl group of acetyl CoA is transferred to oxaloacetate by the enzyme citrate synthase. OTrue (2pts) False
8. The movement of protons out of the mitochondrial matrix establishes an electrochemical H gradient across the inner mitochondrial membrane. The electrochemical potential of this gradient is harnessed to synthesize ATP. This is known as the (A) Hydrophobic effect IqChemiosmotic theory (B) Acid catalysis (0) Michaelis-Menten mechanism _9. Which of the following statements about mitochondria and their lon and metabolite transporters is FALSE? (A) Controlled impermeability of the inner mitochondrial membrane to most ions and metabolites allows for the generation...
Q2.
The release of ATP by the beta subunit is most directly
dependent on:
Select ONE option:
1. the flow of protons from the intermembrane space to the
matrix.
2. the rotation of the c-ring in the membrane.
3. the passage of electrons along the electron transport
chain.
4. a conformational change in the beta subunit.
Q3.
What defines the direction of rotation of the c-ring in the F0
complex?
(Select ALL that apply.)
1. Amino acids side chains in...
FUework Chapter 03. Energy. Chemical Reactions, and Cellular R i Saved Required information 1 2 The mitochondrial electron transport system moves electrons from a donor molecule to a receptor molecule, which in the process drives a proton (H+) pump. In order to establish a proton gradient, the protons accumulate in Part 1 of 3 O the outer membrane the Intermembrane space 3.57 O the matrbx points O the cristae elook 3. How does the proton (H+) gradient created by the...
You have generated two sets of vesicles, both with bacteriorhodopsin (which pumps protons out of bacteria in response to light) and the mitochondrial F1 ATPase inserted into the membranes of the vesicles. In both cases, the parts of the proteins that normally face the outside of the cell or the mitochondrial intermembrane space are inside the vesicles, and protons, ADP and inorganic phosphate are outside the vesicles. Both sets of vesicles are incubated with light, but one set also has...
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