Electron transport is coupled to oxidative phosphorylation in that it creates the proton gradient that provides the energy for oxidative phosphorylation. Think about how the two processes could be decoupled. A. What might be one mechanism for decoupling? B. What would be the result of decoupling? Hint: many cold-adapted animals have tissues in which decoupling happens normally

Which statements below reflect differences between the electron transport chain (ETC) that operates on the thylakoid membrane and that on the inner mitochondrial membrane? Choose ALL that are true -The ETC on the thylakod contrians only one protein that pumps protons across the membrane, while that on the mitochondrial membrane contains 3. -The ETC on the mitochondrial membrane uses ATP synthase, while the ETC on the thylakod does not. -The final electron acceptor in the mitochondrial ETC is oxygen, while the final electron acceptor in the thylakoid ETC is NADP+ -A proton motive force is generated only across the inner mitochondrial membrane but not acorss the tnylakoid membrane.

Chemicals called uncouplers can make membranes permeable to small molecules and ions. What effect might uncouplers have on photosynthesis? O D. decreased NADPH production because the proton gradient would increase. O A decreased carbohydrate production because ATP would decrease. O C.increased ATP production because cyclic electron transport would increase. O B. decreased NADPH production because the proton gradient would decrease. O E. decreased ATP production because the proton gradient would increase

Compare how much net ATP is generated per glucose molecule under anaerobic vs aerobic conditions andexplain the reason for the discrepancy.

Give typing answer with explanation and conclusion

Having now learned how to conduct basic cell culture, you are ready to complete your first experiments.  Below is a portion of the respiration pathway in O.Extremus in which electrons are transferred from NADH to O2; the energy of this reaction is coupled to the pumping of H+, and ultimately ATP production. O.Extremus displays abnormally high activity levels of an enzyme called ATPase.  This results in increased hydrolysis of ATP to ADP and later AMP. What effect would this have on the overall metabolic rate in these cells? Explain your reasoning.

How will the cell shift its metabolic processes in response to the level of pyruvate and in order to produce ATP? A. It will shift from aerobic respiration to fermentation B. It will shift from aerobic respiration to anaerobic respiration C.It will continue with aerobic metabolism using oxygen in the cytosol to make ATP D. It will shift from anaerobic respiration to fermentation

Consider an overview of the process of respiration. It occurs in the subcellular organelle Its input is the electron carrier and the 3-carbon molecule from glucose by the process called 2 which is produced in the cytoplasm

choose the description below that best completes the statement " oxidative phosphorylation is the process in mitochondria by which a. electrons reduce O2 to H2O and this causes ATP to mbe made b.glycolysis produces more ATP than is needed to activate its pathway. c. oxygen is used to cause phosphorylation of biological molecules. d. synthesis of ATP is dependent on passage of electrons through the electron transport chain

The average cell at rest hydrolyzes 10,000,000 ATP molecules per second.You are studying the stem cell population found in intestinal Crypts.In the intestine there are s total 5*1011 cell.The stem cells have a 85% higher metabolism than an average resting cell.ATP hydrlysis yield 7.4 kCal/Mole ATP(Avogadro's number is 6.023*1023) How many Kcal of energy are used per day by this population of cells? Assuming 32 ATP per glucose oxidative metabolically how many moles of glucose are consumed per day?