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Transport of a Compound Across a Cell Membrane (Down a Concentration

Question 53

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Transport of a compound across a cell membrane (down a concentration gradient) was measured at several concentrations. The presence or absence of ATP had no effect on the transport of this compound. Which best describes the mechanism of transport? Transport of a compound across a cell membrane (down a concentration gradient) was measured at several concentrations. The presence or absence of ATP had no effect on the transport of this compound. Which best describes the mechanism of transport? A) facilitated diffusion B) passive diffusion C) primary active transport D) secondary active transport E) proton pumping


A) facilitated diffusion
B) passive diffusion
C) primary active transport
D) secondary active transport
E) proton pumping

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