Credits

Friday, April 17, 2009

Do Plants Sleep?

In the morning...

At night...

It is so interesting, I was in the kitchen washing dishes when I noticed our seedlings folded up all their leaves. Are they sleeping? Yes, plants do sleep at night. They can not make food, so they shut down by closing their stomata.
Let me talk a little bit of science here:
Green plants are the only plants that produce oxygen and make food, which is called photosynthesis. Photosynthesis means "putting together with light." This takes place in sunlight. From sunlight, green plants combine carbon dioxide and water to make sugar and oxygen. Green plants use sugar to make starch, fats, and proteins. there are tiny pores called stomata. Oxygen and carbon dioxide enter and leave through the stomata.

4 comments:

[mr joan croft] said...

That's pretty cool. I never thought about it before, but it makes sense. I know some plants only bloom when there's enough moonlight out.

Mira said...

Hi Dhoy, thanks for refreshing my mind, lol. Just sneaking some drops here.

lanie said...

this is great to start planting seeds indoor and I have a lot of different seeds at somepoint I keep forgotten. I had to start the seed this week. thanks for remiding me.. yeah.. plants sleep at night.

Melinda said...

that was pretty cool!

 

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