How does the venus flytrap know when the insect is inside it's jaw like leaf??

Question

Plants do not have sensory neurons or any such method to detect it THen how does it close when the insect falls in???

Answer 1

on each half of the leaf, there are 3 trigger hairs. the thing is that the hairs have to be touched twice in a 2-20 second interval. that is if you triggered just one hair or two hairs at once (for instance a random raindrop would do so) the trap will not snap. only if something actually moves inside the trap and touches the same hair or two different hairs SUBSEQUENTLY the trap will snap.

no fotochemical reaction involved

Answer 2

Photochemical reaction from the dark insect near the photosensitive plant causes the flower to close. Hey I'm just an auto mechanic what do I know about botany!

Answer 3

The insect trips a trigger that is 2 spikes growing out of the inside of both leaves.

Answer 4

There are tiny hair-like projections inside the plant which when agitated by an insect causes it to react.

Answer 5

there are small hair-like objects on the face of the leaf that reacts when a fly or other insect lands on it. Sort of like nerve endings.

Answer 6

Little hairs on the pad detect the mass. It has no idea what it is, they just make the 'leaf' close.

-Dio

Answer 7

there are very very tiny hair and if suppose a fly will sit on ur hand?????? dnt u feel it or not>??????

Answer 8

http://science.howstuffworks.com/venus-flytrap.htm
please visit this url thank you

Answer 9

beats me!