Daniel Chamovitz

“While the mechanisms involved in electrochemical signaling are complex, the basic principles are simple. Just as a battery maintains its charge by housing different electrolytes in different compartments, a cell has a charge owing to different amounts of various salts in and outside the cell. There is more sodium on the outside of cells and more potassium inside. (That's why salt balances are so important in our diets.) When a mechanoreceptor is activated, let's say by your thumb touching the spacebar on a keyboard, specific channels open up near the point of contact in the cell membrane that allow sodium to pass into the cell. This movement of sodium changes the electric charge, which leads to the opening of additional channels and increased sodium flux. This results in the depolarization that propagates along the length of the neuron like a wave propagating across the ocean.”


Daniel Chamovitz, What a Plant Knows: A Field Guide to the Senses
Read more quotes from Daniel Chamovitz


Share this quote:
Twitter icon

Friends Who Liked This Quote


To see what your friends thought of this quote, please sign up!

0 likes
All Members Who Liked This Quote

None yet!


This Quote Is From

What a Plant Knows: A Field Guide to the Senses What a Plant Knows: A Field Guide to the Senses by Daniel Chamovitz
1,609 ratings, average rating, 209 reviews
Open Preview

Browse By Tag