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DNP Dinitrophenol is a compound that allows hydrogen ions to leak across a membrane. This leakage prevents the maintenance of an H+ gradient. How would this impact a cell? explain
A. It would permit a greater growth rate, since the cell would no longer have to spend energy pumping H+ across the membrane.
B. It would permit a greater growth rate, because the equalization of H+ on both sides of a membrane would help the cell cope with an acidic environment.
C. If the cell were a neuron, it would have no impact, because the charge differential on the surface of the neuron membrane is based on Na+ and K+, not on H+.
D. The cell would lose the bulk of its energy production because of DNP%u2019s interference with chemiosmosis.
E. It would slow the growth rate slightly, but the cell would compensate by maintaining the function of proton pumps.
a sled of mass 1 kg has an initial speed of 1.00m/s across a horizontal surface. the force of friction between the sled and surface is 0.2N. What is the speed of the sled after it ha traveled a distance of 2.00m
q1. from a cliff that is 9.4 m above a lake a young woman mass 44 kg jumps from rest straight down into the water. at
bernoullis equation only yields perfect predictions if the following conditions existi- the liquid is inviscid that is
A particular banana contains 385 mg of potassium, of which a small fraction is the radioactive isotope _19^40 text (K) (see Appendix B). Approximation the activity of this banana because of _19^40 text (K).
The filament of a light bulb has a temperature of 2.96E+3 °C and radiates 50 watts of power. The emissivity of the filament is 0.376. Find the surface area of the filament
an object is placed 15 cm from first converging lens of focal length 10 cm.a. a second converging lens with focal
A factory worker pushes a 29.0kg crate a distance of 4.3m along a level floor at constant velocity by pushing downward at an angle of 32? below the horizontal. What is the total work done on the crate
Suppose that while moving into an apartment you move a refrigerator into place by sliding it across the floor. The refrigerator weighs1566 N and the coefficient of staticfriction between the floor and the refrigerator is 0.48. What is the least force..
A long rod, insulated to prevent heat loss along its sides, is in perfect thermal contact with boiling water (at atmospheric pressure) at one end and with an ice-water mixture at the other.
A series RLC circuit has a peak current of 1.0 A with a frequency of 54 kHz. If the resistance of the circuit is 51 k??, determine the average power of the circuit
If a power plant burns coal at 1000°C and the air temperature where the exhaust fumes cool is at 20°C, what is the maximum efficiency of the power plant?
Mike pulls a sled across level snow with force of 235 N along a rope that is 35.5° above the horizontal. If the sled moved the distance of 75.0 m, how much work did Mike do.
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