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Latest Robert Kranz Stories

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2009-12-18 08:42:57

Scientists at Washington University have isolated a channel that shuttles the vital but vulnerable heme molecule across biological membranes In some ways a cell in your body or an organelle in that cell is like an ancient walled town. Life inside either depends critically on the intelligence of the gatekeepers. If too many barbarians sneak into town, the town may be put to the torch. And if the cellular gatekeepers can't control the flow of ions and molecules into and out of the cell, the...


Word of the Day
call-note
  • The call or cry of a bird or other animal to its mate or its young.
'Call-note' is newer than 'bird-call,' which originally referred to 'an instrument for imitating the note of birds' but now also refers to 'the song or cry of a bird.'
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