Describe the mitochondria, in terms of its membranes, and the compartments they define. Of the four...
Describe the mitochondria, in terms of its membranes, and the compartments they define.
Of the four complexes in the ETC (electron transport chain) which ones ‘pump’ protons across the membrane?
What two molecules shuttle electrons between the complexes in the ETC?
Homework Answers
Mitochondria is a double membrane bound organelle characteristically found in Eukaryotic cell. The outer membrane is permeable to molecules. The inner membrane is highly folded and is known as cristae. It is selectively permeable two molecules. Inside the inner membrane of Mitochondriaal matrix is enclosed. The mitochondrial Matrix also encloses ribosomes. Double stranded circular molecule of DNA is also present in mitochondria and this is the reason, this organelle is known as semi autonomous organelle.
In between inner mitochondrial membrane and outer mitochondrial membrane, intermembrane space is present.
Out of the four complexes in electron transport chain, Complex 1, 3 and 4 transport protons across the membrane.
Coenzyme q and cytochrome C are small mobile electron carriers which shuttle electrons between complexes in electron transport chain.
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Describe the mitochondria, in terms of its membranes, and the
compartments they define.
Of the four...
Both mitochondria and chloroplasts use electron transport to pump protons, creating an electrochemical proton gradient, which...
Both mitochondria and chloroplasts use electron transport to pump protons, creating an electrochemical proton gradient, which drives ATP synthesis. Are protons pumped across the same (analogous) membranes in the two oraganelles? Directionality of the pump? Is ATP synthesized in analogous compartments? Fully explain your answers.
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...
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...
1- In animal mitochondria, H+ protons are actively pumped from ___ to ____. a. the cytosol;...
1- In animal mitochondria, H+ protons are actively pumped from ___ to ____. a. the cytosol; the intermembrane space b. the matrix; the intermembrane space c. the matrix; the cytosol d. the intermembrane space; the cytosol e. the intermembrane space; the matrix 2- Which of the following characteristics of the human mitochondrial genome is FALSE? a. Circular form b. Inherited primarily from mother c. Encodes all necessary proteins the mitochondria needs, including enzymes for transcription and translation d. Genetically similar...
swing processes normally occurs whether or not oxygen is present 48. Which of the following processes...
swing processes normally occurs whether or not oxygen is present 48. Which of the following processes normally occurs w a. citric acid cycle b. glycolysis c oxidative phosphorylation d. electron transport chain 49. Which process occurs in Box B? Electrons MÁ NADH lucose Pyruva Cytosol Mitochondrion che CO2 a. photophosphorylation b. glycolysis C. electron transport chain d. the citric acid cycle 50. Where are the proteins of the electron transport chain located? a. outer membrane of the mitochondria b. inner...
How many membranes does the chloroplast have? 30. How many membranes doos the mitochondria have? 31....
How many membranes does the chloroplast have? 30. How many membranes doos the mitochondria have? 31. A stack of thylakoids are known as d, 4 e, 3 a. Thylakoid dises b, c. thy lakoid lumen 32. The products produced in the light independent reaction are used to drive the light dependent reac a. True b, False 33. The ATP and NADPH produces in the light reaction are used to drive the synthesis of sugars from CO2 a. True b. False...
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
What are the names of the four complexes in the electron transport chain? What molecules/electron carriers...
What are the names of the four complexes in the electron transport chain? What molecules/electron carriers donate electrons to the complexes? What molecules carry the electrons between the complexes (e.g. from complex II to III)? The following are electrons carriers in the complexes: cytochromes a, a3, b, and c1, FAD, FMN. Assign them to the right complexes.
19. How many membranes does the chloroplast have 50. How many membranes does the mitochondria have?...
19. How many membranes does the chloroplast have 50. How many membranes does the mitochondria have? 0.4 C3 31 A stack of this lakoids are known as: granum Thylakoid dises Grama ethylakid lumen 32. The products produced in the light independent reaction are used to drive the light dependent reaction . Stroma Trie h. False 33. The Aland NADPI pride in the light reaction are used to drive the synthesis of gars from CO2 True 34. Photosystem II in photosynthesis,...
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...
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...
swing processes normally occurs whether or not oxygen is present 48. Which of the following processes normally occurs w a. citric acid cycle b. glycolysis c oxidative phosphorylation d. electron transport chain 49. Which process occurs in Box B? Electrons MÁ NADH lucose Pyruva Cytosol Mitochondrion che CO2 a. photophosphorylation b. glycolysis C. electron transport chain d. the citric acid cycle 50. Where are the proteins of the electron transport chain located? a. outer membrane of the mitochondria b. inner...
How many membranes does the chloroplast have? 30. How many membranes doos the mitochondria have? 31. A stack of thylakoids are known as d, 4 e, 3 a. Thylakoid dises b, c. thy lakoid lumen 32. The products produced in the light independent reaction are used to drive the light dependent reac a. True b, False 33. The ATP and NADPH produces in the light reaction are used to drive the synthesis of sugars from CO2 a. True b. False...
What are the names of the four complexes in the electron transport chain? What molecules/electron carriers donate electrons to the complexes? What molecules carry the electrons between the complexes (e.g. from complex II to III)? The following are electrons carriers in the complexes: cytochromes a, a3, b, and c1, FAD, FMN. Assign them to the right complexes.
19. How many membranes does the chloroplast have 50. How many membranes does the mitochondria have? 0.4 C3 31 A stack of this lakoids are known as: granum Thylakoid dises Grama ethylakid lumen 32. The products produced in the light independent reaction are used to drive the light dependent reaction . Stroma Trie h. False 33. The Aland NADPI pride in the light reaction are used to drive the synthesis of gars from CO2 True 34. Photosystem II in photosynthesis,...
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