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nika2105 [10]
3 years ago
6

What type of transport takes place when a protein allows an ion to enter a cell, but no additional energy is needed to make this

happen?
Biology
1 answer:
-Dominant- [34]3 years ago
4 0
<span>The answer is facilitated diffusion. It requires no energy because the ions are traveling down the concentration gradient. Facilitated diffusion is important for the regulation of ions in a  cell. It also enables ions to pass across the hydrophobic layer of the cell membrane composed of phospholipids.</span>




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