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Type: Multiple-Choice
Category: Cell Structure and Function
Level: Grade 11
Tags: Cells
Author: acarling
Last Modified: 20 days ago

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Cell Structure and Function Question

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Grade 11 Cell Structure and Function

A physiologist observes that the concentration of sodium inside a cell is decidedly lower than that outside the cell. Sodium diffuses easily across the plasma membrane of such cells when they are dead, but not when they are alive. What cellular function that is lacking in dead cells explains the difference?
  1. osmosis
  2. diffusion
  3. active transport (solute pumping)
  4. dialysis
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