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? asked in Science & MathematicsBotany · 1 decade ago

why is the grass green?

iv'e always wondered why the grass is green

15 Answers

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  • 1 decade ago
    Favorite Answer

    chlorophyll

  • Anonymous
    5 years ago

    Why is the Grass Is Green? Close Look at Photosynthesis Lets have a look through our Microscope at a typical leaf. To our human eye a leaf seems to be all green, but is that true, or is it an illusion. Looking through a microscope the individual plant cells that can be seen are not that green after all. Instead of being what we thought they are mostly transparent, but each cell contains around 50 to 100 tiny green dots. The correct name for these green dots is chloroplast's, this is where the light sensitive chlorophyll is found and where the process of photosynthesis happens. So what is happening inside the chloroplast's? The chloroplast is likened to a tiny bay with even smaller bags inside called thylakoids . And this is where the green colour comes from. The green chlorophyll molecules are embedded in the surface of the thylakoids, these molecules are not embedded at random but are carefully arranged, this is called photosystems. Two Types of Photosystems Most green plants contain two types of photosytems, these are known as PS1 and PS2. Each as specific jobs to take care of, in the steps of photosynthesis. Absorbing The Sunlight When the sunlight hits the surface of the thylakoid, PS2 chlorophyll molecules are ready to catch it. PS2 molecules are especially interested in catching the red light of a specific wavelength. Again in the thylakoid the PS1 arrays are catching the light from a different longer wavelength. At the same time chlorophyll and other molecules for example carotenoids are absorbing violet and blue light. So now the big question, why is the grass green? From all the wavelengths that fall on plants only one light is useless to them, and this colour is simply reflected away, like a mirror. You guessed it, the colour of light that is useless to the plants in the green light.

  • Anonymous
    1 decade ago

    Grass is green because it has a lot of the chemical "chlorophyll" in it, which is a molecule that (because of its shape and the way it vibrates) absorbs most energy in the blue light and red light ranges, so what you see is the light reflected back by those molecules rather than absorbed, and that looks green. This is also the molecule that is essential for many plants that enables them to convert carbon dioxide into sugars (for growth) using the energy they absorb from the light.There is another kind of chlorophyll that reflects back reddish colors instead of green, and that's what makes some seaweeds look red, and some terrestrial plants had red rather than green leaves...

  • Anonymous
    1 decade ago

    Green leaves, grass, and any other green plant is seen by us as being green because leaves and grass use chlorophyll to change light into energy (photosynthesis). Because of its nature and chemical makeup, chlorophyll absorbs the blue and red colors of the visible spectrum and reflects the green. The green is reflected back out to you and me, making the grass and leaves appear green. This is the same process that makes *everything* look green. Or red... blue...

    Source(s): Geologist.
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  • Anonymous
    1 decade ago

    That's easy. Have u noticed all plants are usually green? It's because plants contain Chlorophylll and substance that makes food for the plant. Chlorophylll is green so that is why grass is green.

    Source(s): My brain :)
  • 1 decade ago

    Because photosynthesis makes it green. But we see that its green because of the light rays that bounce off of the grass and shine back to us. Every other color is absorbed, green is reflected.

  • Anonymous
    1 decade ago

    Because their cells contain chloroplasts that allow for them to carry out photosynthesis, the chlorophyll inside of the chloroplasts are green because it allows it to absorb more light from the sun allowing them to store energy.

  • 1 decade ago

    the chemical Chlorophyll inside the plant's cells appear green. it is the optimum color for picking up the suns light rays, which the plant needs to make energy. interestingly, the plant will absorb all colors of light EXCEPT green. the green light bounces off, which is why our eyes see it.

  • Anonymous
    1 decade ago

    Because the Sky Is Blue

  • Anonymous
    1 decade ago

    Photosynethsis.

  • Anonymous
    1 decade ago

    you couldn't google this??

    here you go dumb blond "Grass and most other plants are green because they contain a pigment

    known as chlorophyll."

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