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In mesophyll cells, the oxygen produced by photosynthesis should first meet its own needs, that is, mitochondria consume oxygen to produce water. When the light is strong, photosynthesis produces more oxygen than cellular respiration consumes, so the excess is released through the stomata. When there is little or no light, plant cells need to absorb oxygen from their surroundings for respiration.
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Oxygen is released to meet one's own needs and then to be released.
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The need to re-attract oneself from the outside world.
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Photosynthesis in most plants takes place in chloroplasts. Because the chlorophyll in chloroplasts can absorb the light energy emitted by the sun. After a series of steps, it is finally converted into stable chemical energy, which is stored in the compound.
The general product is glucose. The green part of the plant has chloroplasts, which can be photosynthesized if the light of the appropriate wavelength is irradiated. Even if there is a green part, photosynthesis cannot be carried out, which has no evolutionary significance for plants, no adaptation significance, and if the chlorophyll made in the body does not work, it is also meaningless in the nature of chlorophyll.
Of course you may be thinking, though there is chlorophyll.
The formula of photosynthesis of green plants, from the formula of photosynthesis, it can be seen that the raw materials of photosynthesis are carbon dioxide and water, the products are organic matter and oxygen, the power is light, and the place of photosynthesis is chloroplast. Therefore, only the parts of green plants that photosynthesize contain chloroplasts. Leaves are composed of epidermis, mesophyll, and veins, and mesophyll cells contain many chloroplasts, which are the main sites for photosynthesis.
The green part of the young stem can also carry out photosynthesis, so the main organ of green plants for photosynthesis is the leaves. So the answer is carbon dioxide and water; Light; Oxygen and organic matter.
Green plants use the energy provided by light to turn carbon dioxide and water into organic matter such as starch in chloroplasts, and then turn the light energy into chemical energy and store it in organic matter. This process is called photosynthesis. The formula of photosynthesis can be expressed in terms of carbon dioxide, water, organic matter (energy storage), oxygen.
The place where green plants photosynthesize is chloroplasts, the condition is light energy, the raw materials are carbon dioxide and water, and the products are organic matter and oxygen, but other parts of photosynthesis are defective. This is possible, but the individual plant will be eliminated. That is, unable to survive.
Of course, there is also the question of why non-green plants can also photosynthesize. This is because there are other kinds of pigments in the body that can convert light energy. Since these aquatic plants live in water, different water wavelengths absorb light differently, and some wavelengths become faint when light reaches the depth of survival, so these algae use light other than green to make organic matter.
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The raw materials for photosynthesis are carbon dioxide and water, and the products are organic matter and oxygen. The site of photosynthesis is chloroplasts, so photosynthesis in green plants takes place only in the parts that contain chloroplasts.
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In chloroplasts, carbon dioxide and water are converted into oxygen, energy and organic matter, such as starch, in chloroplasts.
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The products of photosynthesis carried out by green plants are oxygen and energy, which can provide healthy air and a comfortable environment for humans, which is very good for human health.
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Oxygen, because the purpose of photosynthesis in green plants is to grow and develop, and a very large amount of oxygen is produced in it.
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The absorption range of plant photosynthesis does not exactly coincide with the 400 to 700 nm of visible light, and it has absorption peaks in the blue-violet and red bands, respectively, while the green color is almost completely reflected (so that most plants appear green).
With the increase of light, the photosynthetic rate gradually increases, gradually approaching the respiration rate, and finally the photosynthetic rate and the respiration rate reach a dynamic equilibrium. The light intensity of the same leaf at the same time when the CO2 absorbed during photosynthesis and the CO2 emitted during photorespiration and respiration are equal is called the light compensation point.
Meaning. The scale of plants making organic matter through photosynthesis is very huge. Plants can absorb about the amount of CO2 they synthesize into organic matter per year.
40% of the carbon assimilated by autotrophic plants on the earth is assimilated by phytoplankton, and the remaining 60% is assimilated by terrestrial plants. In other words, there can be no human survival and development without photosynthesis.
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The photosynthesis of the vast majority of plants is carried out in chloroplasts, because the chlorophyll in chloroplasts can absorb light energy from the sun (electron transitions are excited by the photoelectric effect, and if there is a basic interest you can find the mechanism of photosynthesis, this part can be found in the content related to the "photosystem", or the first step of photosynthesis), and finally converted into stable chemical energy stored in compounds through a series of steps (the general product is glucose).
The green part of the plant has chloroplasts, which can be photosynthesized as long as there is light of the right wavelength.
There is a green part without photosynthesis, which has no evolutionary significance and adaptation significance for plants, and the chlorophyll produced in the body does not play a role, which also does not make sense in the nature of chlorophyll.
Of course, you may be thinking that there is chlorophyll but other aspects of photosynthesis are defective. It is possible, but the individual plant will be eliminated, that is, it will not survive.
Of course, there is another question that can also be considered, that is, why can some plants be photosynthesized if they are not green? This is because they have other kinds of pigments in their bodies that can also convert light energy. For example, red algae and brown algae (you can think of the brown kelp that you usually eat), these aquatic plants live underwater, because the water absorbs different wavelengths of light, and when the light reaches the depth at which they live, some wavelengths are already very weak, so these algae will use light other than green to make organic matter.
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Summary. Within a certain range, the higher the concentration of carbon dioxide, the stronger the photosynthesis.
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Hello, green plants carry out photosynthesis, and there is a relationship with the complex. Water is one of the raw materials for photosynthesis, and the lack of water will reduce photosynthesis. The photosynthesis of plants is affected by many factors, and it can meet the requirements of water, inorganic salts, temperature, light and other aspects of farming and photosynthesis to the greatest extent.
Agricultural production will be abundant.
Within a certain range, the higher the concentration of carbon dioxide, the stronger the photosynthesis.
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