Why the grass is green?

Question

Why the grass is green?

Answer 1

Grass and most other plants are green because they contain a pigment

known as chlorophyll. The chlorophyll is used in the process of

photosynthesis where a plant produces sugar in the presence of

sunlight. In fact the word 'photosynthesis' means literally to

synthesize or 'make' from light (photo).  There are, of course some

plants which do not contain chlorophyll, and these generally get their

nutrition (food) by other means.  Some examples are the fungi which

decompose dead, and sometimes living, tissue, for their food.

You will find that a green plant needs light to make food.  If the

source of light is cut off, the plant dies. Mushrooms, which are

fungi, do not require light to make food (they decompose matter

as I mentioned above) and you can find mushrooms growing in almost

total darkness.

The process of photosynthesis is described in great detail in many

science books.  It is really the process by which life as we know it

is able to continue and renew itself.

this is why grass is green i hope i was some help..http://www.newton.dep.anl.gov/askasci/bi...

Answer 2

Duh, grass is green because of chlorophyll.

Only that's not much of an answer. Why is chlorophyll green?

Your answer will depend on whether or not you accept the theory that species emerge through natural selection, a/k/a evolution. If you do not buy evolution, then this will not make sense to you.

Funny thing about the color green: it is not very effective at capturing the energy from the rays of the sun. Remember, the chlorophyll molecule absorbs energy from the sun and uses that energy to synthesize carbohydrate molecules.  Green is not nearly as effective as red pigments, which capture about 50% more energy than green ones can.

Remember, also, that chloroplasts evolved separately from the cells that now contain them, just as mitochondria (definitely were) and ribosomes may have been. So whether we focus on the life of the chloroplast by itself or inside other organisms, where is the evolutionary advantage in being green? Wouldn't red plants be much more effective at capturing energy? Shouldn't red plants rule the world?

They used to. There was a time when the atmosphere of the earth was a reducing atmosphere. Methane and carbon dioxide made up most of the atmosphere. The oceans were full of red plants, busily photosynthesizing, but on a totally different metabolic plan, one that did not generate oxygen as a by product.

Green plants evolved in this ocean. It happens that when the ocean is turned red by the plants that existed in this pre-cambrian period (indeed, not just pre-Cambrian, but Ediacaran), the light that remains after the red pigments have absorbed their fill is green.

That's right. Green plants evolved to exploit the small amount of energy left in sunlight after filtering through a couple of meters of deep red water. Of course, green photosynthesis produces molecular oxygen as a byproduct, and oxygen is highly, highly toxic to living things. The gyrations our bodies go through to use oxygen as a metabolic accelerator without being poisoned by this highly reactive element are simply amazing and studied at length (and in great pain) by medical students and other students of physiology. The oxygen killed off the pre-existing red plants, leaving mere traces of their former existence in marginal biomes, like the sulfur vents on the ocean floor.

Answer 3

Because it is on the other side of the fence.

Answer 4

Grass is green beause of the chlorophyl pigment. We perceive a color depending on what wavelength of light it reflects. Grass reflects green so it is green.

Answer 5

Chloropyll

Answer 6

Because green is the color you perceive when you look at grass

Answer 7

The green photosynthetic pigment, chlorophyll, found in the chloroplast is in a higher concentration than the other pigments, photosynthetic (carotenoid) and non-photosynthetic. It is all in the frequency of light that is reflected and in the case of almost all true plants, the green spectrum that is seen is not of use. Kind of the "what came first the chicken or the egg?" as it where. What came first, plants with higher chlorophyll reflect green and don't use it because of that or they don't use it and developed to not need it in spite of that? You can't have your cake and eat it, you can't need green light frequencies and rely on a photo pigment that reflects it. Anyway there are other pigments but you won't see them, as in the case of fall foliage, until the leaf dies and anthocyanins (and others) are then visable. Make a grass with high red or yellow pigments and you might make a bit of money.

Answer 8

it's because of the pigment called chlorophyll which enables the process called photosynthesis in plants. this is the process by which plants make their own food.

Answer 9

Chlorophyll, a pigment in many plants.

Answer 10

it is green because of chlorophyll present in it .

Answer 11

The main reason it is green is because it reflects green light in the color spectrum. Of course there are factors as to why it reflects the color already mentioned, but the reason it is Green is because it absorbs the other colors, just like black is black because it absorbs all colors, thus reflects no color in the color spectrum and is thus black.