What are some systems in plants that allow them to carry out the processes that keep them alive?
372248
1. photosythesis, the process of using light with nutrients that are collect to form energy\n2. leeching, the process of pulling water and other vital elements from the soil and CO2 from the air to proform photosytheis (I know there is another word but I can't think of it, but this has a similar meaning)
681008
Plants respire through stomata... valve-like openings on the underside of their leaves.
48937
Photosynthesis is the process by which plants, some bacteria, and some protistans use the energy from sunlight to produce sugar, which cellular respiration converts into ATP, the "fuel" used by all living things.
802594
Animals inhale oxygen and exhale carbon dioxide. Green plants are the only plants that produce oxygen and make food, which is called photosynthesis. Photosynthesis means ''putting together with light.'' This takes place in chloroplasts, which have chlorophyll in them. Chlorophyll absorbs the sunlight. From sunlight, green plants combine carbon dioxide and water to make sugar and oxygen. Green plants use sugar to make starch, fats, and proteins. There are tiny pores called stomota. Oxygen and carbon dioxide enter and leave through the stomata.\nhttp://library.thinkquest.org/3715/photo3.html\n\nImportance of Photosynthesis\n\nAnimals and plants both synthesize fats and proteins from carbohydrates; thus glucose is a basic energy source for all living organisms. The oxygen released (with water vapor, in transpiration) as a photosynthetic byproduct, principally of phytoplankton, provides most of the atmospheric oxygen vital to respiration in plants and animals, and animals in turn produce carbon dioxide necessary to plants. Photosynthesis can therefore be considered the ultimate source of life for nearly all plants and animals by providing the source of energy that drives all their metabolic processes.
61665
Trees are phototrophs, they produce their own food by using carbon dioxide, water, and sunlight.
973071
these are called the classical "work horses" of plant and aniamal cells respectivly.  Regardless chlorplast is reposnsible the energy conversionin photsysnthesis and mitochondia is used in cell metabolism to provide energy through ATP-ADP energy relationships. Any basic science book would do this and so would a Wikepedia or googlesearch. I woudl suggest you go there to get spsecifics, or try the library in your neighbourhood
44754
Plants use the energy of sunlight to grow using a process call photosynthesis (light - putting together) taking in carbon dioxide from the air and giving up oxygen.  At night the light of the moon (reflection of sunlight) is too weak to support photosynthesis and the plant actually uses oxygen rather than make it.
872446
Hi there,\nNo plant or for that matter, no organism on earth can work like that 24hrs to produce oxygen. Actually no plant has any "commitment" to produce oxygen at all. Oxygen is actually a byproduct of the mechanism called photosynthesis. Photosynthesis is how plants and other organisms that have the green pigment Chlorophyll, produce their food. Oxygen is relesed as a byproduct in this process consisting of a series of reactions. All plants work like this during to produce food (carbohydrates, proteins, etc) during day time just because they can utilise the sun's light energy as much as possible. But once night falls, these plants stop this process of "food making" and go to "sleep". During thiese hours of night, they respire just like  any other animal. They take in Oxygen and give out CO2. The Peepal tree is no exception. And if they do try working 24x7 as INdian MYths say, they will soon be exhausted, because the energy required for photosynthetic processes is supplied by the process of "respiration". \nPeepal got its false fame in Hindu literature just because it is considered a holy tree- a tree of enlightenment since ancient times.
220436
to store sugars, and other energy sources for the plant
428956
A storage organ is a part of a plant specifically modified for storage of energy (generally in the form of carbohydrates) or water. Storage organs often grow underground, where they are better protected from attack by herbivores. Underground storage organs and the plants that bear them are sometimes called geophytes.
434792
Plants need a number of things to grow. They need water from the soil, energy from the sun, carbon dioxide from the air and they need nutrients.  Very often one or more of these resources are limiting so that the plant can not grow as big as it would otherwise. Often the most limiting resources are water or nutrients. This can be helped by irrigation in the case of water or by fertilisers in cases were nutrients are deficit. Nutrients are building blocks in the plant. For example nitrogen, which is most abundant in the plant except for carbon, is an important element in \nproteins, as is sulphur. Magnesium is needed in the chlorophyll so that the plants can gain energy from sunlight. These elements can be given to the \nplants by fertilising the soil. Nitrogen, phosphorous and potassium are generally given in the largest amounts. Sulphur, magnesium, copper, zinc and so on are given much sparse and are called micronutrients. Carbon is \nnot a nutrient in the same way, as the roots do not take it up. It is assimilated in needed quantities from the air as carbon dioxide.
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Plants do not take in Oxygen. They take in Carbon Dioxide (the main gas we exhale) and produce Oxygen.
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Plants are living things, and like us, need noses to breathe.  The 'noses' of plants are tiny holes called stomata (s), stoma (p) at the underside of leaves.  These stoma help the plant exchange gases with its surrounding.  Oxygen is produced during the day as the byproduct of photosynthesis, when the plant takes in carbon dioxide in the presence of sunlight to make food.  At night, the plant rests and does not make any more food, thus consuming oxygen.  This whole process is called respiration.
351720
The leaves of a plant play an important role in the plant. The leaves capture sunlight and use it along with carbon dioxide to produce food for the plant. Tthe process gives off oxygen. The leaves also store the food for future uses. The leaves have stomata for the escape of the not needed oxygen.
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The leaves on any tree/plant work mainly as the energy center to enhance the food supply of the plant.  Photosynthesis is the primary action within the leaves, not the storage of water.  The roots, and the trunk of the tree maintain the water.\n\nSo when a tree looses it's leaves it simply maintains it's primary surface, ie trunk and branches, by storing the water within the lower roots, and within the innermost section of the trunk.
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It supports the plant.It also contains the xylem and phloem. The xylem transports water and minerals from the roots to the rest of the plant.The phloem transports food made in the leaves to the rest of the plants. :)
700706
Things that make it possible to live on earth include oxygen,O2,(respiration) sunlight for plants to do photosynthesis, enough heat , not too much, water, H2O, plants to keep the oxygen cycle going and make food, land to be on, gravity to hold the atmosphere, the rest of the minerals and etc. we need supplied.