Cell Biology - A Field of Science Explored by Thousands of Students Every Year

Cell Biology - A Field of Science Explored by Thousands of Students Every YearCell Biology is a discipline dealing with the study of living organisms in general and the human body in particular. It is divided into two sub-disciplines: Cellular Biophysics and Molecular Biology.Cell Biology helps us understand what an organism is made of and how cells work in a detailed manner. It is not very clear to many people as to how cell is formed and how it functions. Cells are simply living things.They contain RNA and DNA, which are the molecules that we use to copy the DNA of a cell. Inside each cell, a single nucleus holds the genetic material. The DNA itself has a sequence of nucleotides. The various patterns of these nucleotides help cells replicate and reproduce.There are many different cell types in different parts of the body. These include digestive, respiratory, nervous, etc. There are various causes that can result in the cells to differentiate. There are various types of cells such as stem cells, lymphocytes, fibroblasts, etc.Blood cells are derived from the bone marrow. They are said to be essentially composed of fat cells, serum (a natural fluid that contains fat), myelin (which helps protect the nerves) and red blood cells. These components are essentially composed of collagen and elastin. The myelin contains fats and nutrients that assist the nerves to conduct messages.Cell biology aims at understanding and predicting how cells operate, the number of cells that exist in a certain area, and how cells change. Cell types include epithelial cells, endocrine cells, non-endocrine cells, which are primarily responsible for regulating and governing the hormones of an organism, and skeletal muscle cells, which make up our muscles.Cells are constantly in motion. Cells normally store a good amount of glucose (sugar) in their nuclei. Other forms of sugar stored in the cell can also be used as energy by the cells.When cells need more energy, glucose becomes a cell's en ergy source. However, when cells don't receive sufficient amounts of glucose, they may die. Therefore, cells help us get all the nutrients that we need.