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How is heat dissipated in hibernating mammals during winter? O UCP1 allows the transport of protons...
6) What protein complex in the inner mitochondrial membrane allows protons to return to the matrix?...
6) What protein complex in the inner mitochondrial membrane allows protons to return to the matrix? ONADH dehydrogenase FoF1 porin electron transport carriers cytochrome 47) Which of the following compounds inhibits the pyruvate dehydrogenase (2pts) complex? O FAD NAD+ □ ADP acetyl COA 48) The acetyl group of acetyl CoA is transferred to oxaloacetate by the enzyme citrate synthase. OTrue (2pts) False
Hibernating animals and human infants contain brown fat deposits, so-called because of the presence of large...
Hibernating animals and human infants contain brown fat deposits, so-called because of the presence of large numbers of mitochondria, the site of electron transport and oxidative phosphorylation. In brown fat, given the appropriate stimulus, oxidative phosphorylation and electron transport can be uncoupled, causing energy to be dissipated as heat. The protein responsible for the uncoupling is a brown fat inner mitochondrial membrane protein previously named UCP (for uncoupling protein), but now referred to as UCP1, since a second uncoupling protein...
Most newborn mammals, including human infants, have a special type of adipose tissue called brown fat,...
Most newborn mammals, including human infants, have a special type
of adipose tissue called brown fat, in which a naturally occurring
uncoupling protein called thermogenin is present in the inner
mitochondrial membrane. Thermogenin uncouples ATP synthesis from
electron transport so that the energy released as electrons flow
through the electron transport chain is lost as heat instead.
What kind of an experiment can you suggest to test your hypothesis? Drag the terms on the left to the appropriate blanks on...
Which of the following is not a primary pump linking a transport reaction to a chemical...
Which of the following is not a primary pump linking a transport reaction to a chemical reaction? A. mitochondrial FoF1-ATP synthase, B. mitochondrial complex I, OC mitochondrial complex II, D. mitochondrial complex III, E mitochondrial complex IV, OF. all of the above How may c-subunits are believed to be present in the c-ring of mammalian mitochondria? DA.8. OB. OC. 12, OD. 14, OE 17, OF. none of the above. An enzyme's activity is analyzed using a Hill Plot and the...
PLEASE ANSWER ALL PARTS. THANK YOU! 11. (13 pts) Electron transfer Electron transfer translocates protons from...
PLEASE ANSWER ALL PARTS. THANK YOU!
11. (13 pts) Electron transfer Electron transfer translocates protons from the mitochondrial matrix to the external medium, establishing a pH gradient across the inner membrane (outside more acidic than inside). The tendency of protons to diffuse back into the matrix is the driving force for ATP synthesis by ATP synthase. During oxidative phosphorylation by a suspension of mitochondria in a medium of pH 6.9, the pH of the matrix has been measured as 7.7....
Question 12 1 pts From your General Cell Biology knowledge, what biological process occurs in/on cristae?...
Question 12 1 pts From your General Cell Biology knowledge, what biological process occurs in/on cristae? Glycolysis Calvin Cycle Cellular respiration TCA cycle DQuestion 13 1 pts From your General Cell Biology knowledge, what is cellular respiration? O The energy stored in the proton electrochemical gradient is harnessed by a proton channel that uses the energy released to turn the ATP synthase to power the synthesis of ATP. Glucose is metabolized to pyruvate with the formation of reduced intermediates, NADH,...
I1. Mammals lack the enzyme a. Lactate dehydrogenase b. Pyruvate kinase Alcohol Dehydrogenase c. d. Pyruvate...
I1. Mammals lack the enzyme a. Lactate dehydrogenase b. Pyruvate kinase Alcohol Dehydrogenase c. d. Pyruvate decarboxylase None of the above are correct e. 12. The first reaction of the Krebs cycle combines Oxaloacetate and Acetyl CoA to make Citrate b. a. Malate and NADH to make Citrate a-ketoglutarate and citrate to make CO2 d. c- Succinate and Citrate to make Oxaloacetate 13. The electrons held by NADH and FADH, are donated to the which complexes in the ETC respectively?...
What process uses ATP to create glucose? O ATP synthase electron transport chain O gluconeogenesis O...
What process uses ATP to create glucose? O ATP synthase electron transport chain O gluconeogenesis O citric acid cycle Question 11 (2 points) What would expect to happen in mitochondria that have fewer cristae Increased proton motive force Decreased oxygen usage increased ATP to ADP conversion O No change in mitocondrial funciton Question 12 (2 points) What is one example of when energy molecules/electron carriers are produced during the citric acid cycle? O conversion of succinate to fumarate O addition...
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...
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...
6) What protein complex in the inner mitochondrial membrane allows protons to return to the matrix? ONADH dehydrogenase FoF1 porin electron transport carriers cytochrome 47) Which of the following compounds inhibits the pyruvate dehydrogenase (2pts) complex? O FAD NAD+ □ ADP acetyl COA 48) The acetyl group of acetyl CoA is transferred to oxaloacetate by the enzyme citrate synthase. OTrue (2pts) False
Most newborn mammals, including human infants, have a special type
of adipose tissue called brown fat, in which a naturally occurring
uncoupling protein called thermogenin is present in the inner
mitochondrial membrane. Thermogenin uncouples ATP synthesis from
electron transport so that the energy released as electrons flow
through the electron transport chain is lost as heat instead.
What kind of an experiment can you suggest to test your hypothesis? Drag the terms on the left to the appropriate blanks on...
Which of the following is not a primary pump linking a transport reaction to a chemical reaction? A. mitochondrial FoF1-ATP synthase, B. mitochondrial complex I, OC mitochondrial complex II, D. mitochondrial complex III, E mitochondrial complex IV, OF. all of the above How may c-subunits are believed to be present in the c-ring of mammalian mitochondria? DA.8. OB. OC. 12, OD. 14, OE 17, OF. none of the above. An enzyme's activity is analyzed using a Hill Plot and the...
PLEASE ANSWER ALL PARTS. THANK YOU!
11. (13 pts) Electron transfer Electron transfer translocates protons from the mitochondrial matrix to the external medium, establishing a pH gradient across the inner membrane (outside more acidic than inside). The tendency of protons to diffuse back into the matrix is the driving force for ATP synthesis by ATP synthase. During oxidative phosphorylation by a suspension of mitochondria in a medium of pH 6.9, the pH of the matrix has been measured as 7.7....
Question 12 1 pts From your General Cell Biology knowledge, what biological process occurs in/on cristae? Glycolysis Calvin Cycle Cellular respiration TCA cycle DQuestion 13 1 pts From your General Cell Biology knowledge, what is cellular respiration? O The energy stored in the proton electrochemical gradient is harnessed by a proton channel that uses the energy released to turn the ATP synthase to power the synthesis of ATP. Glucose is metabolized to pyruvate with the formation of reduced intermediates, NADH,...
I1. Mammals lack the enzyme a. Lactate dehydrogenase b. Pyruvate kinase Alcohol Dehydrogenase c. d. Pyruvate decarboxylase None of the above are correct e. 12. The first reaction of the Krebs cycle combines Oxaloacetate and Acetyl CoA to make Citrate b. a. Malate and NADH to make Citrate a-ketoglutarate and citrate to make CO2 d. c- Succinate and Citrate to make Oxaloacetate 13. The electrons held by NADH and FADH, are donated to the which complexes in the ETC respectively?...
What process uses ATP to create glucose? O ATP synthase electron transport chain O gluconeogenesis O citric acid cycle Question 11 (2 points) What would expect to happen in mitochondria that have fewer cristae Increased proton motive force Decreased oxygen usage increased ATP to ADP conversion O No change in mitocondrial funciton Question 12 (2 points) What is one example of when energy molecules/electron carriers are produced during the citric acid cycle? O conversion of succinate to fumarate O addition...
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...
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