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What is the Endoplasmic Reticulum?

Most cells contain a system of internal membranes called the endoplasmic reticulum, after abbreviated ER. The name sounds complicated, but endoplasmic simply means “within the plasm” (cytoplasm of the cell) and reticulum means “network”. There are two types of endoplasmic reticulum: a rough, or granular, endoplasmic reticulum, characterized by ribosomes on its surface ; a  Full Article…

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What is the Mitochondria?

All cells in the body, with the exception of mature red blood cells, have a hundred to a few thousand organelles called mitochondria. Mitochondria serve as sites for most of the energy’s producing in cells. Because of this, mitochondria are sometimes called the “powerhouses” of the cell. Mitochondria vary in both size and shape, but  Full Article…

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What are Ions and Ionic Compounds?

In particular cases, one or more of the outer electrons of an atom are completely transferred from that atom to another; Therefore, they are not shared at all. This causes the result of imbalance in the numbers of protons and electrons in the atom. As previously mentioned, atoms with a net charge obtained in this  Full Article…

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What are the Types of Membrane Transport?

The mechanisms involved in the transport of molecules and ions through the cell membrane may be divided into two categories: transport that requires the action of specific carrier proteins in the membrane (carrier-mediated transport); transport through the membrane that is not carrier mediated. Carrier-mediated transport may further be subdivided into facilitated diffusion and active diffusion.  Full Article…

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What are the Characteristics of Membrane Carrier?

In order to sustain metabolism, cells must be able to take up glucose, amino acids, and other organic molecules from the extracellular environment. Molecules just like these, however, are too large and polar to pass through the lipid barrier of the cell membrane by simple diffusion. And they need the help of carrier proteins within  Full Article…

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What is the Regulation of Blood Osmolality?

The osmolality of the blood plasma is normally maintained within very narrow limits by a variety of regulatory mechanisms. When a person becomes dehydrated, for example, the blood becomes more concentrated as the total blood volume is reduced. The increased blood osmolality and osmotic pressure stimulates osmoreceptors, which are neurons located in a part of  Full Article…

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What are Shares and are they a Good Investment?

There can be a lot of misunderstandings surrounding company shares. Most people feel comfortable talking about ‘shares’ but many will do so without having spent any time considering what these actually are. There are plenty of movies and TV shows that have had storylines where people have made or lost their fortunes because of shares;  Full Article…

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Investing: Every little makes a miracle.

Before understanding the investment market you should know yourself, just like own characteristic, the superiority and inferiority. Meanwhile special on controlling your weakness to prevent make the mistakes. Then measured the type of the fund management and the structure and the preferences of the investors precisely, thus can take the optimal strategy rational. A fixed-income  Full Article…

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5 Principles of Investing

Along with the expansion of the fund size, the key of the fund management should be transferred to the portfolio management which must be digesting the entire portfolio. Investment is not mysterious, everyone can be the specialist of investment only if they act according to the following points: Only invest the industry you familiar with  Full Article…

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Some interesting facts about the United States Presidents

In the United States, the presidential campaign is held every four years.There are two parties in the country, the Democratic party and the Republic party, each of whom selects their candidates to run for the president. There have been 44 presidents in the United States. Among them, George Washington was  the first president who served  Full Article…

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Accidents and Hazards for Children

Accidents are the commonest cause of death in children over the age of a year. Road accidents are by far the most commonest cause children’ accidental death. Choking, drowning and burns too are the common children accidents Children accidents differ from those of adults. There are three main factors in each accidents: the causative agent  Full Article…

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What is tuberculosis? What are the causes, symptoms and treatment?

Tuberculosis is often shortened as TB, which is an infectious disease. It is no longer the ‘captain of the Kings of Death’ in developed countries, but still remains a major problem in many developing countries. Mycobacterium tuberculosis is spread by droplets, and primary infection may occur in the lung, skin or gut. Sensitivity to tuberculin  Full Article…

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What is scarlet fever? (causes, symptoms and treatment)

Scarlet fever results from infection with a strain of the organism which produces an erythrogenic toxin. Its incubation period is 2 to 4 days. After that the child develops tonsillitis, fever, headache and malaise. The rash develops within 12 hours of the onset and rapidly becomes generalized. It consists of a fine punctate erythema which blanches  Full Article…

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What is pertussis or whooping cough? What are the symptoms, causes and treatment?

Pertussis is caused by a prolonged respiratory illness which is particularly dangerous in infancy. The incubation period is about 7 days. After that, there is a ‘catarrhal’ stage lasting 1 to 2 weeks, during which the child is unwell, with signs of upper respiratory tract infection. Acough develops and becomes increasingly severe. Spasms of coughing  Full Article…

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What is glandular fever and what are the causes, symptoms and treatment?

Glandular fever often occurs in adolescents and young adults, but is not uncommon in children. Infection is usually sporadic, though epidemics can occur in schools or residential homes. The onset of glandular fever is usually insidious and occurs after an incubation period of 4 to 14 days. The clinical features are anorexia, malaise and fever  Full Article…

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What is rubella? (symptoms, causes and treatment)

Rubella, or German measles, is usually a mild illness, and may pass unrecognized. The incubation period is 14 to 20 days and there may be little or no fever or malaise before the appearance of the pink macular rash which lasts for about 3 days. Generalized lymphadenopathy, especially involving the suboccipital nodes. may be present. A will-be mother  Full Article…

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What are the problems of breast-feeding the baby?

Breast feeding is a complex process. The breast and nipple may be ill-formed, but appropriate care during pregnancy cando much to encourage adequate development. So if the will-be mother is going to choose breast feeding her baby, she need to wash and massage her breasts frequently during the pregnancy. If the nipples are inside, it  Full Article…

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