A Whiff of Danger

Fragrances hinder cells' removal of other chemicals

12:24pm, March 16, 2005

Just as even the most seaworthy ship must steadily pump out bilgewater, cells continuously rid themselves of chemicals that don't belong inside. The biological pumps that cells use for this purpose are among evolution's oldest and most enduring inventions. They share nearly identical molecular machinery in organisms from bacteria to people.

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