A drug is tested in the laboratory and is found to create holes in both mitochondrial...
Homework Answers
The drug will inhibit both, oxidative phosphorylation and TCA cycle. Since, oxidative phosphorylation depends on an electrochemical potential gradient between the two mitochondrial membrane, it will be blocked if there is a hole in the membrane that would dissipate this gradient. Also, because TCA cycle occurs in the matrix but have have one enzyme (succinate dehydrogenase) which is membrane bound, the disruption of membrane structure would also negatively impact this process.Glycolysis that occurs in cytoplasm will have no direct effect of this drug.
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A drug is tested in the laboratory and is found to create
holes in both mitochondrial...
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...
intermediate molecules of ADP. 48. Approximately how many molecules of ATP are produced from the complete...
intermediate molecules of ADP. 48. Approximately how many molecules of ATP are produced from the complete oxidanono molecules of glucose (C6H1206) in aerobic cellular respiration? A) 2 B) 4 C) 15 D) 30-32 E) 60-64 49. In liver cells, the inner mitochondrial membranes are about five times the area of the out mitochondrial membranes. What purpose must this serve? A) It increases the surface area for glycolysis. B) It increases the surface area for the citric acid cycle. C) It...
1Q 5.1 Energy Transformations in Cells The energy released by oxidizing glucose is saved in the...
1Q 5.1 Energy Transformations in Cells The energy released by oxidizing glucose is saved in the high-energy bonds of: O A ADP and other activated carrier molecules O B ATP and other activated carrier molecules O C GDP and other activated carrier molecules. O D water and carbon dioxide. Unanswered 2 attempts left Assigned as Homework 0 2Q 5.1 Energy Transformations in Cells Sugars (glucose) ingested from food are broken down by O A glycolysis, the citric acid cycle, and...
QUESTION 1 Which of the following options lists the stages in cellular respiration in the correct...
QUESTION 1 Which of the following options lists the stages in cellular respiration in the correct order? A. glycolysis, oxidative phosphorylation, pyruvate oxidation, and the citric acid cycle B glycolysis, pyruvate oxidation, the citric acid cycle, and oxidative phosphorylation C. pyruvate oxidation, oxidative phosphorylation, glycolysis, and the citric acid cycle D. the citric acid cycle, oxidative phosphorylation, pyruvate oxidation, and glycolysis QUESTION 2 When a glucose molecule loses a hydrogen atom as the result of an oxidation-reduction reaction, the glucose...
In redox reactions Protons are transferred from one molecule to another One substance loses electrons and...
In redox reactions Protons are transferred from one molecule to another One substance loses electrons and the other gains electrons A substance that loses electrons is reduced, while a substance e that gains electrons are oxidized B and c are both correct Which process in eukaryotic cells will proceed normally whether oxygen (O2) is present of not? Electron transport Glycolysis The citric acid cycle Oxidative phosphorylation Chemiosmosis How many carbon atoms are fed into the cirtic acid cycle as a...
Where do the following occur in a cell? a) Glycolysis b) Citric Acid Cycle c) Oxidative...
Where do the following occur in a cell? a) Glycolysis b) Citric Acid Cycle c) Oxidative Phosphorylation d) Carbon Fixation
1) Glucose enters human enterocytes (intestinal epithelial cells) against its concentration gradient. A Na+ ion enters...
1) Glucose enters human enterocytes (intestinal epithelial cells) against its concentration gradient. A Na+ ion enters the cell with each glucose molecule, and while the glucose transporter does not hydrolyze ATP, it depends on a pre-existing gradient of Na+ ions that is created by the Na+/K+ ATPase. This is an example of ____________. A. primary active uniport B. secondary active antiport C. primary active symport D. secondary active symport 2) Which statement is FALSE? A. Acetyl CoA is oxidized to...
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Metabolism...
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Metabolism and Cellular Respiration Refer to Figure below as a guide to answer the folloaing questions Acetyt CoA Oxaloacetic acid CoA NADH Citric acid NAD Isocitric acid Malic acid Fumaric acid NAD co NADH -FADH FAD+ a-Ketoglutaric acid Succinic acid CO2NAD ATP Succinyl CoA ADP P NADH Figure above. Starting with citric acid and ending with oxaloacetic acid, how many ATP 6) Refer to molecules...
10. What is the relationship between anabolic and catabolic pathways? A. Anabolic pathways create complex molecules...
10. What is the relationship between anabolic and catabolic pathways? A. Anabolic pathways create complex molecules using the energy from catabolic pathways. B. Anabolic and catabolic pathways are interchangeable. C. Catabolic pathways create complex molecules using the energy from Anabolic pathways. D. Molecules broken down by anabolic pathways provides energy for catabolic pathways. Cellular respiration 11. Which of the following statements about NAD+ is true? A) NAD+ is reduced to NADH during glycolysis, pyruvate oxidation, and the citric acid cycle....
Inhibitors of Oxidative Phosphorylation The following chemicals inhibit oxidative phosphorylation: Cyanide: Cyanide is a naturally occurring...
Inhibitors of Oxidative Phosphorylation The following chemicals inhibit oxidative phosphorylation: Cyanide: Cyanide is a naturally occurring compound that binds to protein complex IV of the mitochondrial electron transport chain and prevents transfer of electrons from the protein. Metformin: At the cellular level, chemically synthesized metformin, a drug commonly prescribed for Type 2 diabetes, inhibits mitochondrial respiration by blocking complex I. Dinitrophenol: Dinitrophenol is a metabolic poison that can be sold legally as a pesticide. Although it is lethal to humans,...
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...
intermediate molecules of ADP. 48. Approximately how many molecules of ATP are produced from the complete oxidanono molecules of glucose (C6H1206) in aerobic cellular respiration? A) 2 B) 4 C) 15 D) 30-32 E) 60-64 49. In liver cells, the inner mitochondrial membranes are about five times the area of the out mitochondrial membranes. What purpose must this serve? A) It increases the surface area for glycolysis. B) It increases the surface area for the citric acid cycle. C) It...
1Q 5.1 Energy Transformations in Cells The energy released by oxidizing glucose is saved in the high-energy bonds of: O A ADP and other activated carrier molecules O B ATP and other activated carrier molecules O C GDP and other activated carrier molecules. O D water and carbon dioxide. Unanswered 2 attempts left Assigned as Homework 0 2Q 5.1 Energy Transformations in Cells Sugars (glucose) ingested from food are broken down by O A glycolysis, the citric acid cycle, and...
QUESTION 1 Which of the following options lists the stages in cellular respiration in the correct order? A. glycolysis, oxidative phosphorylation, pyruvate oxidation, and the citric acid cycle B glycolysis, pyruvate oxidation, the citric acid cycle, and oxidative phosphorylation C. pyruvate oxidation, oxidative phosphorylation, glycolysis, and the citric acid cycle D. the citric acid cycle, oxidative phosphorylation, pyruvate oxidation, and glycolysis QUESTION 2 When a glucose molecule loses a hydrogen atom as the result of an oxidation-reduction reaction, the glucose...
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Metabolism and Cellular Respiration Refer to Figure below as a guide to answer the folloaing questions Acetyt CoA Oxaloacetic acid CoA NADH Citric acid NAD Isocitric acid Malic acid Fumaric acid NAD co NADH -FADH FAD+ a-Ketoglutaric acid Succinic acid CO2NAD ATP Succinyl CoA ADP P NADH Figure above. Starting with citric acid and ending with oxaloacetic acid, how many ATP 6) Refer to molecules...
10. What is the relationship between anabolic and catabolic pathways? A. Anabolic pathways create complex molecules using the energy from catabolic pathways. B. Anabolic and catabolic pathways are interchangeable. C. Catabolic pathways create complex molecules using the energy from Anabolic pathways. D. Molecules broken down by anabolic pathways provides energy for catabolic pathways. Cellular respiration 11. Which of the following statements about NAD+ is true? A) NAD+ is reduced to NADH during glycolysis, pyruvate oxidation, and the citric acid cycle....
Inhibitors of Oxidative Phosphorylation The following chemicals inhibit oxidative phosphorylation: Cyanide: Cyanide is a naturally occurring compound that binds to protein complex IV of the mitochondrial electron transport chain and prevents transfer of electrons from the protein. Metformin: At the cellular level, chemically synthesized metformin, a drug commonly prescribed for Type 2 diabetes, inhibits mitochondrial respiration by blocking complex I. Dinitrophenol: Dinitrophenol is a metabolic poison that can be sold legally as a pesticide. Although it is lethal to humans,...
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