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2. Nicotinamide adenine dinucleotide (NADH) acts as a Redox catalyst in the electron transport chain of...
3. The structure of nicotinamide adenine dinucleotide in its reduced form (NADH) is indicated here. CH2-O-P-...
3. The structure of nicotinamide adenine dinucleotide in its reduced form (NADH) is indicated here. CH2-O-P- 07 OH OH Он он a. Describe the structural relationship to of NADH to adenosine diphosphate (ATP). b. When NADH serves as a reductant (as it does in many biological applications), the compound delivers a hydride to the chemical species that to be reduced. Identify the source of hydride in NADH, and draw the structure of the oxidized form of NAD, the oxidized form...
The reduced form of the coenzyme nicotinamide adenine dinucleotide is abbreviated NADH. In the presence of...
The reduced form of the coenzyme nicotinamide adenine dinucleotide is abbreviated NADH. In the presence of a variety of enzyme catalysts, NADH acts as a biological hydride donor, capable of reducing aldehydes and ketones to alcohols, according to the general formula OH enzyme -LR + NADH + H+ + R + NAD The carboxylic acid functional group is not reduced. Draw the product in each of the three NADH reduction reactions shown. Draw the product of Reaction A. Select Draw...
A 10ml sample containing the reduced form of nicotinamide adenine dinucleotide (NADH) had a fluorescence of...
A 10ml sample containing the reduced form of nicotinamide adenine dinucleotide (NADH) had a fluorescence of 26.0 relative to a reagent blank. When 1.00umol of NADH was added to the sample solution (without voume change), the fluorescene increased to 78.3 relative to the blank. Calculate the concentration of NADH in the sample in units of umol/ml.
10. A number of molecules can act as electron carriers in biological systems. In cellular respiration,...
10. A number of molecules can act as electron carriers in biological systems. In cellular respiration, there are two important electron carriers, one of them being nicotinamide adenine dinucleotide. The NADH moves to the electron transport chain and donates a pair of electrons and protons resulting in NAD+. This oxidation process of NADH to NAD+ results in the liberation of 53 kcal/mole (under standard conditions), a. Considering the following reaction scheme, where does this energy come from? b. Which molecule...
1. The enzymes involved in the electron transport chain are located in the: A) Mitochondrial matris...
1. The enzymes involved in the electron transport chain are located in the: A) Mitochondrial matris B) Mitochondrial inner-membrane Mitochondrial inner-membrane space D) Mitochondrial outer-membrane 2. Which of the following is not classified as a micronutrient? A) Vitamins B) Antioxidants C) Minerals D) Water 3. The metabolic reaction pathways that break down food molecules are known as: A) Anabolism and release biochemical energy B) Anabolism and require biochemical energy Catabolism and release biochemical energy D) Catabolism and require biochemical energy...
Question 9 1 pts In the reaction occurring at the start of the electron transport chain:...
Question 9 1 pts In the reaction occurring at the start of the electron transport chain: (NADH dehydrogenase is also known as Complex I) NADH NAD+ + H+ NADH dehydrogenase O NADH is reduced, NADH dehydrogenase is oxidized O NADH dehyrogenase removes a H from NADH, but does not accept electrons O NADH is oxidized, NADH dehyrogenase is reduced NAD+ is reduced, NADH is oxidized
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...
is required to accept electron 17. At the very end of the electron transport chain in...
is required to accept electron 17. At the very end of the electron transport chain in the mitochondria, final electron acceptor. A. carbon dioxide B. ADP C. ATP Synthase Doxygen E. NAD+ 18. Select the correct flow of energy transfer during cellular respiration. A. NADHH gradient glucose → ATP B glucose → NADH H gradient ATP C. glucose H gradient → NADH ATP D. glucose ATPH gradient → NADH 19. If a muscle cell has low levels of oxygen, which...
please help! 51. Which type of inorganic complexes are found in the electron transport chain? A)...
please help!
51. Which type of inorganic complexes are found in the electron transport chain? A) Gold-Sulfur (Au-S) B) Titanium-Sulfur (Ti-S) C) Silver-Sulfur (Ag-S) D) Iron-Sulfur (Fe-S) 52. Which of the following statement does not support the chemiosmosis model? A) Intact mitochondria are necessary for ATP synthesis. B) ATP is synthesized when a pH gradient is imposed on mitochondria in absence of NADH C) In cells without mitochondria significant ATP synthesis did not occur D) PH outside the mitochondria is...
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....
3. The structure of nicotinamide adenine dinucleotide in its reduced form (NADH) is indicated here. CH2-O-P- 07 OH OH Он он a. Describe the structural relationship to of NADH to adenosine diphosphate (ATP). b. When NADH serves as a reductant (as it does in many biological applications), the compound delivers a hydride to the chemical species that to be reduced. Identify the source of hydride in NADH, and draw the structure of the oxidized form of NAD, the oxidized form...
The reduced form of the coenzyme nicotinamide adenine dinucleotide is abbreviated NADH. In the presence of a variety of enzyme catalysts, NADH acts as a biological hydride donor, capable of reducing aldehydes and ketones to alcohols, according to the general formula OH enzyme -LR + NADH + H+ + R + NAD The carboxylic acid functional group is not reduced. Draw the product in each of the three NADH reduction reactions shown. Draw the product of Reaction A. Select Draw...
10. A number of molecules can act as electron carriers in biological systems. In cellular respiration, there are two important electron carriers, one of them being nicotinamide adenine dinucleotide. The NADH moves to the electron transport chain and donates a pair of electrons and protons resulting in NAD+. This oxidation process of NADH to NAD+ results in the liberation of 53 kcal/mole (under standard conditions), a. Considering the following reaction scheme, where does this energy come from? b. Which molecule...
1. The enzymes involved in the electron transport chain are located in the: A) Mitochondrial matris B) Mitochondrial inner-membrane Mitochondrial inner-membrane space D) Mitochondrial outer-membrane 2. Which of the following is not classified as a micronutrient? A) Vitamins B) Antioxidants C) Minerals D) Water 3. The metabolic reaction pathways that break down food molecules are known as: A) Anabolism and release biochemical energy B) Anabolism and require biochemical energy Catabolism and release biochemical energy D) Catabolism and require biochemical energy...
Question 9 1 pts In the reaction occurring at the start of the electron transport chain: (NADH dehydrogenase is also known as Complex I) NADH NAD+ + H+ NADH dehydrogenase O NADH is reduced, NADH dehydrogenase is oxidized O NADH dehyrogenase removes a H from NADH, but does not accept electrons O NADH is oxidized, NADH dehyrogenase is reduced NAD+ is reduced, NADH is oxidized
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...
is required to accept electron 17. At the very end of the electron transport chain in the mitochondria, final electron acceptor. A. carbon dioxide B. ADP C. ATP Synthase Doxygen E. NAD+ 18. Select the correct flow of energy transfer during cellular respiration. A. NADHH gradient glucose → ATP B glucose → NADH H gradient ATP C. glucose H gradient → NADH ATP D. glucose ATPH gradient → NADH 19. If a muscle cell has low levels of oxygen, which...
please help!
51. Which type of inorganic complexes are found in the electron transport chain? A) Gold-Sulfur (Au-S) B) Titanium-Sulfur (Ti-S) C) Silver-Sulfur (Ag-S) D) Iron-Sulfur (Fe-S) 52. Which of the following statement does not support the chemiosmosis model? A) Intact mitochondria are necessary for ATP synthesis. B) ATP is synthesized when a pH gradient is imposed on mitochondria in absence of NADH C) In cells without mitochondria significant ATP synthesis did not occur D) PH outside the mitochondria is...
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....
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