1.What kind of cells often use the glycerol-phosphate shuttle? A.brain B. heart C.liver D. kidney
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CHOOSE THE CORRECT LETTER
1.What kind of cells often use the glycerol-phosphate shuttle?
A.brain
B. heart
C.liver
D. kidney
2.What is the net ATP yield of the complete glycolysis of 5 molecules of glucose?
A. 4
B. 5
C. 10
D. 12
3.Which of the following substrates is used in the first oxidation step of the Kreb's cycle to produce NADH and COy?
A. isocitrate
B. a-ketoglutarate
C. citrate
D. succinyl-CoA
Step by step
Solved in 4 steps
- 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.…a. In the TCA cycle, which of the following combines with acetyl CoA to form a 6-carbon compound? i. oxaloacetate ii. thiamine iii. glucose iv. pyruvate b. The last step in glycolysis is the transfer of phosphoryl group from phosphoenolpyruvate to ADP catalyzed by pyruvate kinase. i. True ii. FalseCHOOSE THE CORRECT LETTER 1.Which of the following molecules are NOT involved in the reaction catalyzed by phosphoglycerate kinase?A.3-phosphoglycerateB.NADHC. 1,3-bisphosphoglycerateD. ATP 2.What is the significance of the Kreb's cycle as a metabolic pathway?A.It allows recovery of energy from carbohydrates only.B.It allows recovery of energy from glucogenic and ketogenic amino acids.C.It allows recovery of energy from fatty acids only.D. It allows recovery of energy from several metabolic fuels that are brokEn down to acetyl-CoA 3.What is the product of glucose metabolism in skeletal muscles in aerobic conditions?A. glycogenB. Acetyl-CoAC. lactateD. acetaldehyde
- Match the coenzymes and/or substrates with their corresponding glycolytic enzymes. Note that an enzyme can match with more than one coenzyme or substrate in the list. ATP NAD+ Dihydroxyacetone phosphate A. Glucose 1-dehydrogenase B. Phosphofructokinase-1 C. Glyceraldehyde 3-phosphate dehydrogenase D. ATPase E. Triose phosphate isomeraseCHOOSE THE CORRECT LETTER 1.What kind of reaction is catalyzed by hexokinase?A. oxidationB. reductionC. phosphorylationD. isomerization 2.Which of the following reaction types are NOT found in glycolysis?A. phosphorylationB. reductionC. oxidationD. isomerization 3.What type of reaction is catalyzed by glyceraldehyde-3-phosphate dehydrogenase?A.phosphorylationB.reductionC. isomerizationD. oxidationCHOOSE THE CORRECT LETTER.... 1.Gluconeogenesis involves the conversion ofA.pyruvate to glucoseB.glucose to pyruvateC. phosphoenol pyruvate to glucoseD.pyruvate to fructose 2.Stearic acid requires eight cycles of B-oxidation to be completely converted to acetyl-CoA.A. TrueB. False 3.ATP is produced from the electron transport system via oxidative phosphorylation.A. TrueB. False
- Given the following question on the image identify the following:1. Total number of glucose molecules entering glycolysis2. Total number of pyruvate molecules produces at the end of glycolysis3. Total number of mitochondrial NADH produced after pyruvate is acted upon pyruvate dehydrogenase complex4.Total number of CO2 released right after the pyruvate dehydrogenase complex reactionConsider that the shuttle system is maltase-aspartate shuttleCHOOSE THE CORRECT LETTER 1.Which of the following enzymes need ATP as a substrate in the reaction?A.phosphoglycerate kinaseB. phosphofructokinaseC. pyruvate kinaseD.glyceraldehyde-3-phosphate dehydrogenaseCHOOSE THE CORRECT LETTER 1.Which of the following reaction types are NOT found in glycolysis?A. isomerizationB. oxidationC. reductionD. phosphorylation 2.What type of reaction regenerates oxaloacetate after one turn of the Kreb's cycle?A. hydrationB. dehydrationC. reductionD. oxidation
- Which of the following enzymes is the key regulatory step in glycolysis? Phosphofructiokinase-1 is the answer. Explain? A. Phosphoglucose Isomerase B. Phosphofructokinase-1 C. Pyruvate Kinase D. Hexokiase E. Phosphofructokinase-2 ...Why is Phosphoglucose Isomerase wrong?Increased citric acid levels in the blood will stimulate which of the enzymes listed below? Select one: O a. transketolase O b. pyruvate carboxylase O c. enolase d. acetyl-CoA carboxylase O e. transaldolase No of ATP formed per turn of the citric acid cycle. Select one: O a. 7 Ob. 10 O c. 9 O d. 12 The most abundant product of the reactions of the Krebs cycle is Select one: O a. GTP O b. carbon dioxide c. reduced co-enzymes O d. pyruvate O e. water A regulator of the enzyme glycogen synthase is: Select one: O a. pyruvate b. 2,3 bisphosphoglycerate (2,3 BPG) O c. GTP O d. citric acid O e. glucose-6-phosphate Clear my choiceThe glycolysis reaction map indicates that is also a substrate for the pentose phosphate pathway (PPP), while product of the PPP and an intermediate for glycolysis. A. \beta-D-Glucose-6-phosphate; glyceraldehyde-3-phosphate B. \alpha - D- Glucose-6-phosphate; glyceraldehyde-3- phosphate C. \alpha-D-Glucose-6-phosphate; glycerate D. \alpha-D-Glucose-6-phosphate; glycerate-3-phosphate is a