If you took a drug that blocked proton (H+) pumps in the mitochondria, specifically, how would...
If you took a drug that blocked proton (H+) pumps in the mitochondria, specifically, how would that affect the electron transport chain and the production of ATP (2pts)?
Homework Answers
Proton pumps play key role in cellular respiration.Free energy released by oxidation of glucose to carbon dioxide is is retained in reduced coenzymes NADH and FADH2 , generated during glycolysis and Kreb's cycle.Electrons from NADH and FADH2 are transferred to O2via electron transport chain,The electron transport chain includes three complexes( I, III, IV ) that are proton pumps.As high energy electron is passed through the electron transport chain, some of the energyreleased is used by three complexes ( I, III, IV ) to pump proton out of the matrix space.The resulting electrochemical proton gradient drives back proton into mitochondrial matrix through ATPase thereby generating ATP. Blocking proton pumps would inhibit electron flow, and hence generation of ATP.The consequence would be inhibiting complete oxidation of glucose to ATP and CO2 .Failing to meet energy demands of the cell and inhibition of cellular respiration would be lethal to the organism.
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If you took a drug that blocked proton (H+) pumps in
the mitochondria, specifically, how would...
In mitochondria, the electron transport chain pumps H+ ions from the matrix into the intermembrane space....
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
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.
LOCATION OF THE CITRIC ACID CYCLE Choose... EMBEDDED CYTOCHROME PROTEIN PUMPS FOUND IN Choose... CRISTAE/CISTERNA THE...
LOCATION OF THE CITRIC ACID CYCLE Choose... EMBEDDED CYTOCHROME PROTEIN PUMPS FOUND IN Choose... CRISTAE/CISTERNA THE ONLY METHOD OF ATP PRODUCTION IN CELLS THAT LACKA CITRIC ACID CYCLE MITOCHONDRIA ANAEROBIC WHEN THE ENDING ELECTRONS ARE COMBINED WITH H2 + MATRIX 1/202 ANATOMY INCLUDES INTRAMEMBRANE SPACE AND MATRIX. CHEMIOSMOSIS ALWAYS OCCURS IN THE CYTOPLASM IN BOTH EUKARYOTES OXIDATION AND SUBSTRATE LEVEL PHOSPHORYLATION AND PROKARYOTES CRISTAE/CISTERNA FORM OF ANAEROBIC RESPIRATION USED BY YEAST GYLCOLYSIS CYCLICALLY REARRANGES CARBON INTERMEDIATES STARTING ELECTRON TRANSPORT CHAIN...
8. What is the main function of the coenzymes NAD+ and FAD? a. To form water...
8. What is the main function of the coenzymes NAD+ and FAD? a. To form water b. To act as enzymes by removing hydrogen atoms from substrate c. To transport hydrogen atoms to the electron transport chain. 9. During the oxidation of glucose, what happens to the carbons as they are removed from glucose? a. They produce water b. They bond to NAD+ c. They form CO2 d. They form Coenzyme A 10. What happens during the Kreb Cycle? a....
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...
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...
21) Which process in eukaryotic cells will normally proceed whether O2 is present or absent? A)...
21) Which process in eukaryotic cells will normally proceed whether O2 is present or absent? A) oxidative phosphorylation B) glycolysis C) Krebs cycle D) electron transport 22) The direct energy source that drives ATP synthesis during respiratory oxidative phosphorylation is A) thermodynamically favorable transfer of phosphate from glycolysis and Krebs cycle intermediate molecules of ADP. B) the thermodynamically favorable flow of electrons from NADH to the mitochondrial electron transport carriers. C) the final transfer of electrons to oxygen. D) the...
1. The Mystery of the Seven Deaths-- The results in Part III suggests which process of...
1. The Mystery of the Seven Deaths--
The results in Part III suggests which process of respiration
[glycolysis, pyruvate processing, citric acid cycle, or the
electron transport chain] was affected? Why is this the process you
suspect [based on the results]?
Does cyanide poisoning increase ATP production or decrease it?
Explain your answer.
2. The effect of gramicidin--
List the one(s) that would remain the same.
List the one(s) that would decrease (or go to zero).
List the one(s) that...
PRE-KREBS/TRANSITION PHASE: In the absence of oxygen the luyunde molecules from glycolysis are converted to lactic...
PRE-KREBS/TRANSITION PHASE: In the absence of oxygen the luyunde molecules from glycolysis are converted to lactic acid. If oxygen is present, they are instead converted into 2 molecules of _which then enter the mitochondria to undergo anaerob metabolism. During this transition phase, no ATP is produced but are released. and Mitochoadrial CITRIC ACID CYCLE: The citric acid cycle occurs in the matrix Both of the molecules of Adel produced after glycolysis run through the citric acid cycle reactions. At the...
Own Question 42 5 pts Label your Answer! A) In Anaerobic conditions which part of cellular...
Own Question 42 5 pts Label your Answer! A) In Anaerobic conditions which part of cellular respiration is still active? B) What is NADH? In which steps cellular respiration are they created? C) In the electron transport chain (ETC) what is the name of the channel protein that makes a lot of ATPs. How is this channel protein activated? D) How would the electron transport chain (ATP production part) be affected if the inner membrane of the mitochondria were punctured...
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
LOCATION OF THE CITRIC ACID CYCLE Choose... EMBEDDED CYTOCHROME PROTEIN PUMPS FOUND IN Choose... CRISTAE/CISTERNA THE ONLY METHOD OF ATP PRODUCTION IN CELLS THAT LACKA CITRIC ACID CYCLE MITOCHONDRIA ANAEROBIC WHEN THE ENDING ELECTRONS ARE COMBINED WITH H2 + MATRIX 1/202 ANATOMY INCLUDES INTRAMEMBRANE SPACE AND MATRIX. CHEMIOSMOSIS ALWAYS OCCURS IN THE CYTOPLASM IN BOTH EUKARYOTES OXIDATION AND SUBSTRATE LEVEL PHOSPHORYLATION AND PROKARYOTES CRISTAE/CISTERNA FORM OF ANAEROBIC RESPIRATION USED BY YEAST GYLCOLYSIS CYCLICALLY REARRANGES CARBON INTERMEDIATES STARTING ELECTRON TRANSPORT CHAIN...
8. What is the main function of the coenzymes NAD+ and FAD? a. To form water b. To act as enzymes by removing hydrogen atoms from substrate c. To transport hydrogen atoms to the electron transport chain. 9. During the oxidation of glucose, what happens to the carbons as they are removed from glucose? a. They produce water b. They bond to NAD+ c. They form CO2 d. They form Coenzyme A 10. What happens during the Kreb Cycle? a....
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...
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...
21) Which process in eukaryotic cells will normally proceed whether O2 is present or absent? A) oxidative phosphorylation B) glycolysis C) Krebs cycle D) electron transport 22) The direct energy source that drives ATP synthesis during respiratory oxidative phosphorylation is A) thermodynamically favorable transfer of phosphate from glycolysis and Krebs cycle intermediate molecules of ADP. B) the thermodynamically favorable flow of electrons from NADH to the mitochondrial electron transport carriers. C) the final transfer of electrons to oxygen. D) the...
1. The Mystery of the Seven Deaths--
The results in Part III suggests which process of respiration
[glycolysis, pyruvate processing, citric acid cycle, or the
electron transport chain] was affected? Why is this the process you
suspect [based on the results]?
Does cyanide poisoning increase ATP production or decrease it?
Explain your answer.
2. The effect of gramicidin--
List the one(s) that would remain the same.
List the one(s) that would decrease (or go to zero).
List the one(s) that...
PRE-KREBS/TRANSITION PHASE: In the absence of oxygen the luyunde molecules from glycolysis are converted to lactic acid. If oxygen is present, they are instead converted into 2 molecules of _which then enter the mitochondria to undergo anaerob metabolism. During this transition phase, no ATP is produced but are released. and Mitochoadrial CITRIC ACID CYCLE: The citric acid cycle occurs in the matrix Both of the molecules of Adel produced after glycolysis run through the citric acid cycle reactions. At the...
Own Question 42 5 pts Label your Answer! A) In Anaerobic conditions which part of cellular respiration is still active? B) What is NADH? In which steps cellular respiration are they created? C) In the electron transport chain (ETC) what is the name of the channel protein that makes a lot of ATPs. How is this channel protein activated? D) How would the electron transport chain (ATP production part) be affected if the inner membrane of the mitochondria were punctured...
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