The foundation for life itself begins with the cell. The cell is the fundamental unit of structure and function in every living thing; however, there are two different types of cells. There are prokaryotic and eukaryotic cells. Prokaryotic cells are…
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Prokaryotes are evolutionarily ancient, for billions of years the only form of life. Here’s a summary of the basic “parts & pieces” of these primitive cells. Prokaryotes Pro = “before”, karyon = “nucleus” Prokaryotes were the first type of cell…
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Many of us, who have no specialized knowledge about biology or who have forgotten the minute details of how and where food travels, should read this article to find out. Biological research has advanced so far that we can see…
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The cells inside our body are in a continuous process of growing and dividing and differentiating during their life cycle. The extent of growing and maturating depend on the tissue that is involved. Growth under normal conditions in addition to…
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All of us start as a single cell. When a sperm gets together with an egg, the process of forming an embryo, then a fetus, and on to a baby, gets started. But a single cell can’t do all the…
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The kidney are organs that are responsible for filtering the blood and making urine. Urine, of course, is a waste product, you need to filter the bad stuff out of your blood and save it somewhere until you are ready…
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Cells breathe? Well, not really – at least not in the same sense that people breathe. Despite this, there is a process in a cell known as cellular respiration. It’s also called oxidative metabolism, depending on which particular textbook you…
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The kidney has several apparent physiological roles that are related to maintaining homeostasis of the body. It is composed of filtering units that are called nephrons. Nephrons in turn are composed of glomeruli and tubules. The filtration of blood occurs…
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November 3, 2013 Physical Science
In the later part of the 18th century and the beginning of the 19th century the structure of the atom was not completely understood. After the discovery of the negatively charged particle that is called the electron and the discovery of the positively charged…
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November 3, 2013 Physical Science
Truth Trumps Everything: Of course there could be a basic particle, in fact, there are at least two. The electron is a basic particle that is classified by modern (quantum) physics in a class known as leptons. A basic particle…
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