Question

$N{a}^{+}/K^{+}$ pump in a cell is an example of

• A. osmosis
• B. diffusion
• C. passive transport
• D. active transport

Answer 1

Answer: (D)

$N{a}^{+}/K^{+}$pump in a cell is an example of active transport, as in this process, chemical energy is required because molecules move against the normal diffusion gradient. Active transport serves chiefly to maintain the normal balance of ions in cells.