To understand how a Venus Flytrap closes its leaves. Imagine cutting a tennis ball in half. If you forced one half of the ball inside out, you could feel how the ball "wants" to flip back to its original position.
When a Venus flytrap is waiting for an insect, its leaves are curved like the inside-out half of a tennis ball. The swelling of cells with extra water triggers the leaf to flip back to its original curved position.
*http://www.eurekalert.org/features/kids/2005-05/aaft-hvf052005.php
When a Venus flytrap is waiting for an insect, its leaves are curved like the inside-out half of a tennis ball. The swelling of cells with extra water triggers the leaf to flip back to its original curved position.
*http://www.eurekalert.org/features/kids/2005-05/aaft-hvf052005.php
