BIG ENCYCLOPEDIA FOR CHILDREN AND ADULTS
What is protoplasm? Detailed answer Directory / Big encyclopedia. Questions for quiz and self-education Did you know? What is protoplasm? Various discoveries have been made in science. Under laboratory conditions, some natural phenomena are repeated. But there is one substance that has not yet been able to repeat. This is protoplasm - the living part of all plants and animals. All organisms, plants and animals, are made up of cells. Some of these cells contain millions, as in humans, others consist of only one cell, such as protozoa. The organism of a whale, a man, a rose contains the same substance in the cell - protoplasm. The protoplasm of a cell consists mainly of two parts. Central, denser - the core. The second part, softer, liquid, is called "cytoplasm". Protoplasm is different in composition. Each species of living organisms has its own form of protoplasm. But even inside the body, different cells have their own types of protoplasm. However, despite the differences, 99% of the protoplasm consists of carbon, hydrogen, oxygen and nitrogen, with the addition of some chemical elements. However, we know that everything that a living organism does is carried out in protoplasm. When food enters the body, it is digested, or converted into liquid. Then the digested food must be absorbed by the protoplasm and become its integral part. This process is called "assimilation". This is a very amazing process - protoplasm turns inanimate matter into living material, turning foreign substances into itself like a substance. Protoplasm also accumulates and releases energy, which is in the body of a plant or animal. Protoplasm, like the living organisms containing it, has periods of rest and activity. Protoplasm reacts to external stimuli. Strong light or heat kills her. Chemical elements attract or reject it. The electric current affects her behavior. However, science still has much to learn about protoplasm itself and how it functions. Author: Likum A. Random interesting fact from the Great Encyclopedia: Are people able to feel the gaze directed at them? The English biochemist Rupert Sheldrake received an affirmative answer to this question. He conducted experiments with English, American and German schoolchildren who were blindfolded and then asked to say when other participants in the experiment looked at them. It turned out that some children are able to answer correctly 90 percent of the time. Sheldrake argues that children are particularly sensitive to the gaze of others. Perhaps they are used to the fact that someone is watching them almost constantly, and they know how to distinguish the moments when they are left without supervision. But the ability to feel someone else's gaze is also inherent in many adults, and in the experiments of an English scientist, some felt a glance directed at them through a window from a distance of 100 meters. Some people manage to feel being watched through a mirror and even through a television camera.
Test your knowledge! Did you know... ▪ What climate is called monsoon and what are monsoons? ▪ When can you swim at the very edge of the Victoria Falls without fear of being swept down? See other articles Section Big encyclopedia. Questions for quiz and self-education. Read and write useful comments on this article. Latest news of science and technology, new electronics: Machine for thinning flowers in gardens
02.05.2024 Advanced Infrared Microscope
02.05.2024 Air trap for insects
01.05.2024
Other interesting news: ▪ Standard supporting 8K VESA Embedded DisplayPort 1.4a ▪ Snapdragon Wear 2100 Wearable Platform ▪ Blockchain technologies for space exploration ▪ MIC28516/7 - 70V/8A Synchronous DC/DC Buck Converters News feed of science and technology, new electronics
Interesting materials of the Free Technical Library: ▪ site section Field strength detectors. Article selection ▪ article One flawless sonnet is worth a long poem. Popular expression ▪ article Who are the Amazons? Detailed answer ▪ article Maintenance of steam boilers for gaseous fuels. Standard instruction on labor protection ▪ article Simple photorelay. Encyclopedia of radio electronics and electrical engineering ▪ Article Blindfolded. Focus secret
Leave your comment on this article: All languages of this page Home page | Library | Articles | Website map | Site Reviews www.diagram.com.ua |