I know that there are exceptions like the venus flytrap and the minosa pudica (touch me not plant) that allow for plants to move. However, most plants cannot move. What is it about plants like venus flytraps and the touch me not plant that allows it to move, but most other plants cannot? And also, why can’t majority of plants move like other organisms?
In: Biology
Plants don’t have muscle tissue, nor nerve tissue to control and activate the muscle tissue. Furthermore, plant cells are not flexible like animal cells, because their cells have a thick, stiff *cell wall*, while we only have cell membranes, so even if they had muscles, they would be too stiff to really move without breaking cells.
Additionally, plants don’t have a respiratory system to move oxygen around to support the energy usage necessary for muscles like most animals. Of course, plenty of animals don’t have any kind of respiratory system and can still move (like jellyfish and corals), but those animals don’t move a whole lot, either.
Plants that *do* move use hydrostatic pressure. That is, they move water around and force cells on one side to swell up bigger than normal. When that happens, it bends the stalk or leaf. It’s not very fast, but it’s fast enough do what they need to do. These aren’t controlled with nerves, just chemical signals.
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