Green plants and certain other organisms use the energy of light to convert carbon dioxide and water into the simple sugar glucose. Photosynthesis provides the basic energy source for virtually all organisms.
Process of Photosynthesis Uploaded by colakid on Oct 30, Photosynthesis is process by which green plants and certain other organisms use the energy of light to convert carbon dioxide and water into the simple sugar glucose.
In so doing, photosynthesis provides the basic energy source for virtually all organisms. An extremely important byproduct of photosynthesis is oxygen, on which most organisms depend. Photosynthesis occurs in green plants, seaweeds, algae, and certain bacteria.
These organisms are veritable sugar factories, producing millions of new glucose molecules per second. Plants use much of this glucose, a carbohydrate, as an energy source to build leaves, flowers, fruits, and seeds.
They also convert glucose to cellulose, the structural material used in their cell walls. Most plants produce more glucose than they use, however, and they store it in the form of starch and other carbohydrates in roots, stems, and leaves. The plants can then draw on these reserves for extra energy or building materials.
Each year, photosynthesizing organisms produce about billion metric tons of extra carbohydrates, about 30 metric tons for every person on earth. Photosynthesis has far-reaching implications.
Like plants, humans and other animals depend on glucose as an energy source, but they are unable to produce it on their own and must rely ultimately on the glucose produced by plants.
Moreover, the oxygen humans and other animals breathe is the oxygen released during photosynthesis. Humans are also dependent on ancient products of photosynthesis, known as fossil fuels, for supplying most of our modern industrial energy. These fossil fuels, including natural gas, coal, and petroleum, are composed of a complex mix of hydrocarbons, the remains of organisms that relied on photosynthesis millions of years ago.
Thus, virtually all life on earth, directly or indirectly, depends on photosynthesis as a source of food, energy, and oxygen, making it one of the most important biochemical processes known.
Plant photosynthesis occurs in leaves and green stems within specialized cell structures called chloroplasts. One plant leaf is composed of tens of thousands of cells, and each cell contains 40 to 50 chloroplasts. The chloroplast, an oval-shaped structure, is divided by membranes into numerous disk-shaped compartments.
These dislike compartments, called thylakoids, are arranged vertically in the chloroplast like a stack of plates or pancakes. A stack of thylakoids is called a granum, the grana lie suspended in a fluid known as stroma.
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Photosynthesis Essay: Photosynthesis is the process of production of organic elements from carbon dioxide, water and energy of the sun by plants. Photosynthesis is the most essential process which occurs on our planet, due to which exists life on Earth.
The process of photosynthesis in plants is based on two reactions that are carried out by separate parts of the chloroplast.
In summary, photosynthesis is an extremely complex process involving many separate reactions. Like virtually all reactions which within occur living systems, they . In the process of photosynthesis leaves that are using water and carbon dioxide under the influence of solar rays synthesize the organic substances. In the afternoon, as a result of photosynthesis and respiration, the plant produces oxygen and carbon dioxide, and at night – only carbon dioxide is produced during respiration. Process of Photosynthesis Essay Words | 6 Pages Photosynthesis is the process by which organisms that contain the pigment chlorophyll convert light energy into chemical energy which can be stored in the molecular bonds of organic molecules.
The light reactions occur in the chloroplast thylakoid membrane and involve the splitting of water into oxygen, protons and electrons. Photosynthesis involves a complex series of reactions, some of which take place only in the presence of light, while others can also be carried out in the dark.
(1) . Photosynthesis is process by which green plants and certain other organisms use the energy of light to convert carbon dioxide and water into the simple sugar glucose. In so doing, photosynthesis provides the basic energy source for virtually all organisms.
An extremely important byproduct of photosynthesis is oxygen, on which most organisms depend. Photosynthesis Photosynthesis is a process in which green plants utilize the energy from the sun to manufacture carbohydrates from carbon dioxide and water in the presence of chlorophyll.