be the effect on If an uncoupling agent is in 3. An uncoupling agent is an Oxyge

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be the effect on If an uncoupling agent is in 3. An uncoupling agent is an Oxygen power ATP synthase. a. The electroch water. will be available for chemiosmosis. electron carriers NADH and FADH2. C. Oxygen will no longer be able to act as the final electron acceptor and form D. The electron transport chain proteins will be unable to accept electrons from we effect on the electron transport chain and chemiosmosis? The electrochemical gradient will be dissipated and no proton motive force oupling agent is inserted into the inner mitochondrial membrane, what will Ping agent is an H channel protein that can be inserted into membranes. Version less HT d. Chemiosmosis will cease as no energy from electrons will be available to 8. Sciferent moleeled carbon photosynthesis ntists canules. If pho (14C), which osis takes place on C. cytosol cytoplasm into the mitochondria. inability of your mutant yeast strain to ferment? d. The cells have a defective electron transport chain. respiration normally. Of the following, which is a possible explanation for the mutant strain of yeast that is unable to ferment but can perform aerobic cellular 6. In anaerobic conditions, yeast normally perform ethanol fermentation. You isolate a The cells lack the enzyme in glycolysis that forms pyruvate. a. The mitochondria lack transport proteins to move pyruvate from the b. The cells are missing essential enzymes to recycle NADH back to NAD in the how they are fred with co by the b. glucose different molecules. If photos 8. Scientists can use labeled forms o containing labeled carbon (140) d. all of the above c. ribulose bisphosphate (RuBP) Vaglyceraldehyde 3-phosphate (GBP) algae will contain 'carter photosynthesis takes place? H gradient. complex, what problem will arise for photosynthesis a. Water will not be able to provide clectrons to the photosystem Carben-dioxide will not be able to enter the planteelle 7. Many herbicides are photosystem Il inhibitors that block photosynthesis and kill plants. If an herbicide binds to and blocks pigment molecules in the light harvesting b. The electron transport chain will be blocked preventing the formation of an rgy from light will not be able to be captured and used to excite electrons. molecules. If photosynthesizing green algae are provided with CO2 can use labeled forms of atoms to trace how they are incorporated into sing labeled carbon (C), which of the following molecules produced by the

Explanation / Answer

5. Option a is the correct answer. Uncoupling agents dissipate the electrochemical gradient and no proton motive force is generated for chemiosmosis and thus no ATP synthesis occurs and energy released from dissipation of electrochemical gradient converted into heat.

During resoiration process electrons carried by NADH and FADH2 enter to electron transport chain and transfer from one complex to another complex. During transfer of electron eenergy is released which causes the movement of protons from matrix to intermembrane space resulting into development of proton gradient. When proton come back to the matrix, energy is released which is utilized by ATP synthase to produce ATP from ADP. An uncoupling agent dissipate this electrochemical gradient and thus proton gradient does not develop and no ATP formation occurs rather heat is produced.

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