why does plants need water to surrive?
112622
Although water is required for photosynthesis the amount of water actually required is tiny, almost immeasurable even in large tree. In contrast a large tree will use hundreds of gallons of water every single day. More importantly a plant that is in the dark will die without water just as fast as a plant in full sunlight. Since photosynthesis can't occur in the dark we know that it can't be photosynthesis that  most of the water is required for.\n\nPlants need water for three main reasons, the first two are  exactly the same reasons that you need water. \n\n1) Water serves as the solvent for every chemcial reaction that makes up life. Without water life simply isn't possible because no chemical reactions assocaited with life can occur.\n\n2) Water is also essential for transporting nutrients around the plant, so minerals are taken from the soil to the leaves dissolved in water, and sugars are taken from the leaves to the roots dissolved in water.\n\n3) Plants use water to maintain their very shape. The cells themselves are held in shape by the pressure of the water inside them, like water-filled balloons. Without water the cells shrink and collapse, and we see this as the plant wilting. If the collapse goes to far t5he cells tear and that part of the plant dies.
128854
On the lower surface of leaves are tiny pores called STOMATA.\nAround the edge of these pores are guard cells.\nThe guard cells can change shape to open or close the pores.\nThis allows or prevents water loss.\n\nLook up STOMATA.\nYou could also try this excellent website:
915751
It would post probably be sunlight.......some plant organisms may survive without water for long periods of time, such as ones in the desert....... but sunlight is required for green plants to make food  which unlike for humans......... food is the bigger priority than water
1063153
It's a drought here. Level 3 water restrictions mean your plants will die with you, sorry.
697611
Yes, plant cells need mitchondria to survive.
29324
Plants have small openings on the underside of their leaves called stomata. The roots pull in water and it travels up and out the stomata. The lower humidity outside the plant pulls the water out.
593033
cell walls keep the cell rigid, so they can stay upright.\n\ncuticles reduce water loss through evaporation, preventing the plant from being dehydrated
414377
Actually U cannot test da water need in photosynthesis. Because da two rules in all experiments to test da agents of photosynthesis r, That da plant should be destarched\nand Da experiment should be controlled. But in the case of water u cannot control water..
380037
They are things that plants need in order to grow.
1160607
Materials, dissolved (or semi-dissolved?) in water, are moved up and down the plant through the xylem and phloem, such as the previous posts say.  An additional factor to think about is that materials and water also move about because of differences in pressure within the vessels of the plant. At the leaf surface, heat and wind are drying the water that is present.  As this water "dries out" of the plant through the stoma, it creates a vacuum within the vessel it was in.  This, in turn, pulls water up through the plant to replace itself (physics-search for pressure, STP). This whole process is called Transpiration.  Adhesion, thus capillary action, would not be sufficient enough a force to distribute water to the highest part of the plant.
109072
ive never heard that, but i guess you must water a plant or a Living thing to keep it alive, which probably means, study your bible (The Living Bible, give it some love and attention) keep it alive, (in your soul) dont let it die out.
855633
They do not need a lot of water.  Replace the soil with cactus soil from any garden centre, and give it a nice sized pot. Mine are always doubling in size, I split one a couple of weeks ago and got nineteen plants from it, which I threw away because nobody wanted one, shame innit.
578532
One of the main challenges was reproducing with out the water. This was eventually made possible with spores. However the spoors still needed to be close to the water other wise they would die. Seeds came around later and solved the problem. The seeds provide the nutrients that the plant needs untill it can support itself.
870190
Pardon me if I am incorrect but i dont think that plants NEED more energy rather they HAVE more energy. Each time you move up the food chain, only 10% (?) of the original energy the organism had is retained. The rest is lost. Since plants are at the bottom of the food chaing and are autotrophs, they receive 100% of the energy they converted through photosynthesis. Then the rabbit who eats the plant gets only 10% of that and the fox who eats the rabbit gets only 1%.
146756
I think when plant absorb water, or H2O, they use the H, or the hydrogen, and aspirate (or "exhale" in animal terms) the oxygen they take in as a liquid as a gas. The aspiration I believe is very slow and could take 100 plants 100 years, longer than the average lifespan of a human being, to see significant increases in oxygen levels.
128882
I agree.  They pretty much all need water, but they can take up many different substances.  In some circles, it is believed that for every substance in the world, there is a microorganism that can break it down.  Things like nitrogen, different carbon sources and a polethora of other things are commonly taken up by bacteria.
318871
The reason is because there is no atmosphere to retain the water. If you did a slow process with water you could eventually get a green house going. It would take a 1000 years and its not really worth it. This would use trillions of tax dollars of money that could possible never work.\nPlus we need trees once there becomes somewhat of a green house to produce oxygen to counter act the CO2.