Biology 9700 · AS & A Level · Movement into and out of cells

Movement into and out of cells — practice question

Batrachotoxin is a toxin present in frogs from the Colombian jungle. Native Indians use the toxin to make poisoned darts. It acts by making some cell surface membranes more permeable to sodium ions, which then move out of the cells. Which statements are true for cells affected by batrachotoxin?

  • A1 and 3
  • B1 and 4
  • C2 and 3
  • D2 and 4

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