Sodium concentrations are higher outside and glucose concentrations are higher inside the cell. Using the same membrane protein for Na+ and glucose transport, what is it called when a Na+ electrochemical gradient is used to drive glucose transport into the cell against its concentration gradient?

A. secondary active transport
B. primary facilitated diffusion
C. passive diffusion
D. secondary facilitated diffusion
E. primary active transport


Answer: A

Biology & Microbiology

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