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How does synthetic blood work?

Synthetic blood is not a full substitute for blood. While true blood serves a number of functions, synthetic blood is designed only to transport oxygen and carbon dioxide throughout the body. This form of synthetic blood is referred to as a “hemoglobin-based oxygen carrier.” HBOCs utilize hemoglobin, a natural oxygen-carrying molecule, to carry oxygen throughout the body. However, because the hemoglobin used in synthetic blood is not located inside a human’s red blood cells, it is susceptible to accumulating high toxicity levels. As a result, no form of HBOC synthetic blood has been appr..

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What is the process that releases energy without using oxygen?

Every cell needs energy to survive and function properly. In animals, this energy comes from glucose molecules formed from the food they eat. The glucose molecules are broken down by glycolysis. If there is oxygen present from the bloodstream, the broken-down glucose moves into the cell's mitochondria and is converted to energy in the form of ATP. If there is no oxygen present, the broken-down glucose stays in the cell's cytoplasm, and fermentation takes place, forming ATP. Fermentation in the cytoplasm produces less ATP than regular cellular respiration in the mitochondria.

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How do living things obtain and use energy?

All living organisms get their matter and energy from the environment, whether it is from the air, soil, water or food. Scientists devised the Pyramid of Energy to explain how energy moves across the food chain. The pyramid contains producers, primary consumers, secondary consumers and tertiary consumers. Producers, such as plants, are at the bottom of the pyramid. Producers do not consume other organisms for energy. Primary consumers rely on plants for their energy and secondary consumers rely on primary consumers for their energy. At the top of the pyramid are tertiary consumers, or decompos..

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Why are cells called the basic unit of life?

The simplest forms of life on earth are bacteria. They are made of a single cell, and they are believed to be the first form of life to arise on earth that still exists today. While plant and animal cells are significantly more complex than bacteria, there are a number of similarities that strongly suggest that modern cells descended from bacteria.\nAs cells began working together, they eventually formed into distinct collections of cells. Plants and animals are the result of this evolution, and all forms of life on earth are comprised of cells with more similarities than dissimilarities. The ..

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What are some causes and effects of flooding?

Flooding refers to an overflow of water that submerges land areas that are usually dry. Flooding is typically caused when rivers, lakes and streams overflow, but heavy and sustained rains may produce flash floods even in dry regions and areas where bodies of water are scarce. Riverine floods are a real threat to human populations located near rivers where flat terrain provides floodwater with an unobstructed path.\nFactors that may affect the frequency and severity of flooding include climate and precipitation, elevation and surrounding terrain as well as the volume of land area located in or ..

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Under which conditions are gases most soluble in water?

The effect of pressure on gas solubility in water is given by Henry’s law, which states that the solubility of the gas in a liquid is directly proportional to the pressure of the gas above the liquid. When the pressure is low, the gas molecules tend to stay in the gas above the liquid rather than dissolving into the liquid. However, when the pressure of is increased, the gas molecules have less space to move around in above the liquid and are more likely to enter the solution. Carbonated beverages such as soda are packed under high pressure to allow the gases to remain dissolved in the liqui..

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Does copper rust?

Oxidization is the process that has given the Statue of Liberty its distinctive green color, which is known as a patina. Oxidization is also the reason the roofs of many older buildings are green. In addition to changing copper's color, the patina creates a protective, waterproof layer over it, which helps to keep the metal underneath from being further damaged by the elements.

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What are the benefits of magnesium oxide?

Magnesium oxide is commonly taken as an antacid, providing relief from heartburn, indigestion and sour stomach. It also serves as a short-term laxative to empty bowels as needed and can be taken with water or juice to mask any unpleasant taste. Using magnesium oxide as a laxative should be done sparingly to avoid unwanted side effects, and it should not be taken on an empty stomach. The laxative effects also help the body detoxify itself. It may be taken as a dietary supplement if a diet does not provide the recommended amount of magnesium. Side effects of taking magnesium oxide can include di..

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What is the difference between 18ct and 9ct gold?

Gold is a valuable metal that is commonly used in jewelry making. Twenty-four carat gold, designated as 24ct, is 100 percent pure gold. Due to its inherent malleability, gold is typically alloyed with other metals to increase its hardness. However, when gold is combined with other metals, its durability is decreased. The durability of 18ct gold is higher compared to 9ct gold. Although 9ct gold is harder than 18ct gold, it does not last as long as 18ct gold.

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What are the building blocks of DNA?

The bases are broken down into two groups, the purines and the pyrimidine. The purines group is made up of the adenine and guanine. This group has a double ring structure, which makes them very easy to tell from the other group. The pyrimidine group is made up of the thymine and cytosine bases. The sugars and the phosphate make up the backbone of the double helix DNA, leaving the bases to essentially create steps of the DNA ladder. The way the bases fit together inside the double helix is very specific. An adenine may only pair with a thymine and a guanine only with a cytosine. This specific p..

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