Saturday, October 5, 2013

Why Leaves change color


                    Why Leaves Change color

Hey guys and welcome back to my very own blog :D. Today were gonna be talking about why leaves change color and how they do that.



Well as all of you guys know from my previous blogs change color by the green pigment chlorophyll. It's job is to capture the sun's light rays and moves the sun's molecules to the stomata that creates glucose. Interesting fact is that glucose is found in many different types of fruit. The chlorophyll reflects  green light and absorbs red and blue light.




The reason why trees stop producing chlorophyll is because the weather got cooler and days are getting shorter and their is fewer sunlight. When the leaves in the tree change color the chlorophyll conceals the two pigments carotenoids which produce yellow, orange, and brown colors and anthocyanins which produce red, pink, and purple colors. The foods that have carotenoids are pumpkins and bananas and anthocyanins apples and grapes.






























How these colors change in the fall is the trees respond to the changes of the weather and leaves start to say goodnight to the sun for a few months.





























What happens to the leaves in the winter is they fall off of the tree because of the water within the cells of the stem of the leaf. But evergreen trees don't lose leaves because of the waxy coating and the fluids inside the cells contain a substance that resists freezing.







Well see ya later haters.


http://answers.yahoo.com/question/index?qid=20070801191740AAvu0Yc

http://www.chm.bris.ac.uk/motm/chlorophyll/chlorophyll_h.htm

http://www.123rf.com/photo_7050083_globe-and-green-leaves-with-drop-of-water-eco-concept-illustration.html

http://dnr.wi.gov/eek/veg/trees/treestruecolor.htm




9 comments:

  1. Everything was great expect you didn't have hyperlinks. 19/20 Great job.

    ReplyDelete
  2. Great info and picture. On grammer problem I can see, but add hyperlinks. overall: 18/20

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  3. This comment has been removed by the author.

    ReplyDelete
  4. Good job, just learn how to use hyperlinks. 19/20

    ReplyDelete
  5. God job on everything, just a couple grammar mistakes, and use hyperlinks, but overall, 90% (18/20)

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  6. you did really good. overall:18/20

    ReplyDelete
  7. Good job with the blog there is hyperlinks. Grade A

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  8. Er... needs more on topic pics and more links. Also found some grammatical errors.. 16/20

    ReplyDelete
  9. A little more info maybe? Links were good, not misplaced. Lots of grammar errors.
    And this is almost incomprehensible:
    "Well as all of you guys know from my previous blogs change color by the green pigment chlorophyll."
    I can understand the point, but seriously, get your subject in there.
    Also, why the PB&J banana/
    Good links
    better than last post
    Amount of Info - 4
    Diagrams and Info - 3
    Sources - 4
    Mechanics - 2
    Writing Quality - 2
    15/20

    ReplyDelete