How do plants get their food? Detailed answer

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How do plants get their food? Detailed answer

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How do plants get their food?

We must not forget that plants are living beings. They eat, they drink, they breathe, and without enough good food they die. With the exception of two classes of plants, all plants produce their own food. Let's see how they do it.

The wonderful substance chlorophyll, found in the cells of the leaves, and sometimes in the trunk and flowers, helps the living tissues of the plant to absorb the energy of sunlight. This energy transforms inanimate (inorganic) elements into life-giving (organic) substances. This truly amazing process is called photosynthesis. But carbon is required for the formation of living matter. The plant gets carbon from the air. (It exists in the air in combination with oxygen in the form of carbon dioxide).

Once the plant receives carbon, it must combine it with other substances in order to build up the various parts of the plant. The most important of these is water, from which the plant obtains hydrogen. The water must also contain certain minerals needed by the plant. These are mainly compounds of nitrogen, sulfur, phosphorus, potash, calcium, magnesium, sodium and iron.

The plant receives this water and minerals through its roots. One of the reasons the roots have such long tips is that the plant can reach new areas of soil with them in search of water and minerals.

Thousands of small hairs on young root shoots pass through the soil particles and extract the necessary substances from them. Some of the water obtained from the roots is used to make sugar. The rest of the water evaporates from the leaves, and the plant wilts when the water evaporates through the leaves faster than it enters through the roots.

By the way, did you know that no two leaves are exactly the same, even if they have the same shape and color?

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

Who graduated from university and wrote 12 books while being blind and deaf and dumb?

American Helen Keller completely lost her hearing and sight in infancy, but thanks to her willpower and the skill of a special teacher, she learned to perceive speech, feeling the vibration of the lips of a speaking person. After that, Helen learned to read Braille in five languages, graduated from high school, and then university. Subsequently, she devoted her life to politics, social work and the protection of the rights of people with disabilities, and also wrote 12 books.

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Semi-rugged laptop Panasonic Toughbook CF-54 20.02.2015

Panasonic has introduced a new semi-rugged laptop Toughbook CF-54. The model was developed specifically for the automotive industry, including for diagnostics, repair and after-sales service of vehicles.

The CF-54 is the thinnest and lightest semi-rugged Toughbook. Its key features include a modular system and a host of additional features that allow users to configure the device to suit their work needs, the company said. The 5th generation i5300-3U vPro processor (2,3MB cache, 2,9GHz to 7GHz with Turbo Boost technology) delivers optimized performance and graphics, as well as reduced power consumption. If necessary, the client can order a model with an even more powerful Core i54 vPro processor. The CF-8.1 is running Windows 7 Pro Update, but due to downgrade rights, the customer can get a Windows XNUMX Professional device.

The 14-inch display provides high-definition and detailed images. HD (1366/768), Full HD (1920/1080) or Full HD capacitive multi-touch configurations are available on request. Optionally, the laptop can be equipped with an AMD FirePro M5100 discrete graphics card for even higher image quality.

"Slim design and extensive customization options combined with durability make the CF-54 a new standard in mobile technology. It will be especially sought after by automotive, field service, utility and telecom workers," said Jan Kämpfer, director of marketing at Panasonic Computer Product Solutions.

According to the company, the Toughbook CF-54 is highly durable and can withstand drops from a height of up to 76 cm. The magnesium alloy case, moisture-resistant screen and keyboard, and a hard-framed lid provide the laptop with adequate protection from external influences. For ease of transportation, a special handle is built into the case, on which the company logo can be engraved.

Another important aspect is the duration of the laptop without recharging. One battery installed in the CF-54 lasts up to 11 hours. The hot-swap option allows you to change the battery without turning off the laptop, and adding an additional battery increases the operating time to 18 hours.

The presence of various types of connection in a laptop is of particular importance to mobile workers, Panasonic said. Thus, the Toughbook CF-54 has a wide range of interfaces, including standard LAN, VGA and HDMI ports for video projectors, printers and screens, True Serial port for connecting to legacy systems, USB 3.0 and 2.0 ports and an SD card slot. Wireless LAN adapter compatible with "a", "b", "g", "n", "ac" standards and supporting data transfer rate up to 866 Mbps, and Bluetooth v4.0 provide fast file transfer. The portable computer comes with an adapter for charging from the car's on-board network or a mount on the dashboard. The 4G LTE module, Dual Pass antenna, contactless smart card reader and fingerprint reader are optionally available (only a contactless smart card reader or only a fingerprint reader can be installed, the company explained).

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