What's the relationship...

Discussion of all aspects of cellular structure, physiology and communication.

Moderators: honeev, Leonid, amiradm, BioTeam

User avatar
Leecosta
Garter
Garter
Posts: 5
Joined: Thu Oct 19, 2006 11:38 pm

Post by Leecosta » Thu Oct 19, 2006 11:46 pm

yah, the sun gives off red and blue colors, and the plant leaves absorb all the colors the sun gives off except for green, therefore it reflects back into our eyes... and thats why when there isn't any light things are black cause there is no light reflecting off into our eyes..

User avatar
MrMistery
Inland Taipan
Inland Taipan
Posts: 6832
Joined: Thu Mar 03, 2005 10:18 pm
Location: Romania(small and unimportant country)
Contact:

Post by MrMistery » Fri Oct 20, 2006 5:34 pm

Why are plants green?
Well, the answer is very complex actually. plants are green because chlorophyll reflects green light and absorbes red and blue light. But why does it work like that? The answer- evolution. During the day, in bright sunlight it doesn't matter what the absorbtion spectrum is, because all colors are present. But in the morning and in the evening red light is present as the majority of photons making up the spectrum of the sun. And blue light? Well, since the energy of blue light is the highest, blue light is the only one that can pass through clouds. So you see, it is very important for plants to be green.

Why don't people search the forum...
"As a biologist, I firmly believe that when you're dead, you're dead. Except for what you live behind in history. That's the only afterlife" - J. Craig Venter

Post Reply

Who is online

Users browsing this forum: Bing [Bot] and 7 guests