Whats worse for a plant, no water or no sunlight?
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
1126251
Okay, for plants to gain energy they break down sunlight through their cells in the way that is called photosynthesis. However, to do this, cells must keep their leaves open and faced towards the sunlight. Transpiration is like us sweating: we loose water in the process to cool down. The heat, air pressure, and solar radiation contribute to this. Because plants need energy, they have to open up and allow transpiration to happen. While they loose water, they gain energy. They just soak up more water from the ground. That is another reason why, if it is in a drought, that plants wither and die. They not only don't have enough water to keep themselves "fed" but the air is soaking up water when they gain energy.
154530
What will happen is that the plant will die coz chlorophyll is a pigment in plants that enables the plant to produce it's own food for survival so without chlorophyll it won't be able to produce it's own food thus resulting to death of the plant.
319253
You mean like not being able to convert sunlight into illumination?
65111
I believe that actually the leaves of plants in the shade are more pale then in the sunlight, not darker. That's because the chlorophil which contained in leaves are not fully used for photosynthesis. The less of usage, the more pale the leaves would be. Probably u know that the leaves look greener if they have enough sunlight.
889141
If u want something easy u can make a rpleca of the solar system. U can by those foam balls and spray paint them. Or u could do an experiment on two plants giving one sunlight and no light to the other. But still feed and water them.
102721
I won't do your homework for you, but I will give you a few hints.\n\nThe first hint is that ddnight is talkin' smack. This has nothing to do with atmosoheric composition.\n\nThe second hint is that you should be looking very varefully at the relative effect of C4 and CAM utilisation on water LOSS. Underline the word 'loss".\n\n--------------------\n>>>CAM plants and C4's do better in higher temps than C3's.\n\nGenerally yes. But the question is why the plants died in that order. Begonia are tropical plants, so a temperature would not have killed it, and the pineapple is both tropical nad C4, sdo temperature effects can't be at play directly.\n\nOnly one plausible explanation remains.
698458
harmful: parasitism\n\nit feeds off plants, no benefit to plant
786061
Homeostasis.\n\nFor more specifics about plants look at the bottom of the second source.
288027
not enough water and potassium
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.
360436
that may just be for the beginning of it's growth eventually it will stop growing because of lack of sunlight and it may be that the sun is drying up the water in the other plant in the sun
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..
896536
Plants must have light to grow.  It doesn't necessarily have to be sunlight. Artificial light is a great to grow most plants too.  Photosynthesis is what causes plants to exchange necessary nutrients to create growth but each have unique abilities to utilize whatever light source is available.
507622
Chlorophyll. It needs the presence of sunlight too.
296735
if the sun doesnt shine or is not bright enough you have no engery
968990
A cactus is good.....you only need to water it once a week, and doesn't require too much sunlight to grow well and beautifully.