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- Match the item to each step in the Krebs Cycle. Write your answers on the Google Form. isocitrate f. Oxaloacetate a. b. succinate g. Sulfur NAD* h. a-ketoglutarate fumarate C. d. malate i. succinyl-CoA j. ATP e. What molecule combines with acetyl-CoA and then releases CoA? 66. What molecule is oxidized by NAD+ to become a 5- carbon compound? 67. What molecule is oxidized by NAD+ to become a 4- carbon compound? 68. 69. What 4-carbon molecule is formed when combined with COA? 70. What molecule is produced when CoA is released? 71. What molecule is formed when GTP is oxidized to form GDP? 72. What atom is the bridge that connects to CoA? 73. What molecule is formed when FAD is reduced? 74. What molecule is formed with the addition of H,O? 75. Which molecule must be reduced so that oxaloacetate is formed? Match the product to the process. Write your answer on the Google Form. GTP f. CO, а. b. phosphofructinase NADH* + CO, g. Citrate formed. c. h. ATP d. Co-A i. Isocitrate HO j- Pyruvate e.…Match the description with the correct enzyme. Descriptions: a. Uses alpha-keto carboxylic acid as a substrate b. Directly transfers cytosolic reducing equivalents into the electron transport chain c. Its activity depends on magnesium ions Options (enzymes): A. Mitochondrial glycerol 3-phosphate dehydrogenase B. Succinate dehydrogenase C. Cytosolic glycerol 3-phosphate dehydrogenase D. Cytochrome oxidase E. Rubisco F. α-ketoglutarate dehydrogenase complexCHOOSE THE CORRECT LETTER Which enzyme assists the transition of an activated fatty acid through the inner membrane of the mitochondria?A. acyl-CoA synthetaseB.carnitine transferaseC. phospholipaseD. lipase
- Which of the following statements are TRUE? Multiple answers:Multiple answers are accepted for this question Select one or more answers and submit. For keyboard navigation...SHOW MORE a. Two molecules of CO2 are produced each time a molecule of Acetyl-CoA is oxidized. b. During the first turn of the TCA Cycle the carbon atoms of Acetyl-CoA become CO2. c. The number of molecules of ATP that can be produced in the Citric Acid Cycle by substrate level phosphorylation of ADP from two molecules of Acetyl-CoA is 30. d. Fumarate contains a trans double bond. The cis isomer of Fumarate is Maleate which cannot serve as carbon source for a cell. e. Lack of O2 would decrease the rate of the Citric Acid Cycle in red blood cells. f. If a potent inhibitor of Succinyl-CoA Synthetaseis is applied to liver cells both energy production and synthesis of carbohydrate would be affected. g. The overall chemical changes that occur during one complete turn of the Citric Acid…Which carbons of glucose will be incorporated into Palmitic acid by the Fatty Acid Synthase? Multiple answers:Multiple answers are accepted for this question Select one or more answers and submit. For keyboard navigation...SHOW MORE a Carbon 1 b Carbon 2 c Carbon 3 d Carbon 4 e Carbon 5 f Carbon 6 g All carbons will be incorporated. h No carbons will be incorporated.Read each pair of sentences and then choose the letter of the correct answer. Your answer must be in UPPERCASE. A. Both statements are true. B. The first statement is true, the second one is false. C. The first statement is false, the second one is true. D. Both statements are false. Apart from transferring electrons, the protein complexes in the mitochondrial electron transport system (ETS) can also pump protons except succinate dehydrogenase. In the chloroplast ETS, ferredoxin is a proton pump.
- A patient complains of painful muscle cramps when performing strenuous physical exercise. A muscle biopsy indicates a higher than normal concentration of muscle glycogen. a. Which enzyme of glycogen metabolism is affected? b. Discuss how the defect of this enzyme affects glycogen metabolism.Identify the CORRECT statements regarding Ketones. SELECT ALL THAT APPLY A. Ketones are synthesized from excess pyruvate B. Ketones may be oxidized to yield cellular energy C. Ketogensis involves removal of coA (s-coa) groups D. Insulin promotes ketogenesisCHOOSE THE CORRECT LETTER 1.Stearic acid requires eight cycles of B-oxidation to be completely converted to acetyl-CoA.A. TrueB. False 2.ATP is produced from the electron transport system via oxidative phosphorylation.A. TrueB. False
- Choose the best answers for each missing word from the list below. ____ regulated by ATP, Aspartate transcarbamoylase (ATCase) is (1) which is a (2)________________ regulator, and by CTP which binds to the (3)____ subunit of ATCase and shifts the conformational equilibrium to the (4). T state. CTP regulation of ATCase is called (5)________ 1) allosterically, 2) positive, 3) regulatory, 4) inactive, 5) feedback inhibition 1) covalently 2) positive, 3) regulatory, 4) active, 5) feedback inhibition 1) allosterically, 2) negative, 3) regulatory, 4) inactive, 5) feedforward activation 1) allosterically, 2) negative, 3) catalytic, 4) active, 5) feedforward inhibition 1) irreversibly, 2) positive, 3) catalytic, 4) inactive, 5) feedback inhihitionCHOOSE THE CORRECT LETTER. Which of the following reactions require ATP in glycolysis?A. glucose-6-phosphate to fructose-6-phosphateB. fructose-1,6-bisphosphate to glyceraldehyde-3-phosphateC. 3-phosphoglycerate to 2-phosphoglycerateD. fructose-6-phosphate to fructose-1,6-bisphosphateIn high concentration, fructose 2,6-bisphosphate activates the glycolytic enzyme phosphofructokinase Select one: a. False b. True