Organization of life

Organization of lifeNotice how your body is composed? You will know that it is composed of lots of small units and they cannot be seen by naked eyes. Those small units are called cells. Living things may be composed of one cell, but there are others which are composed of millions of cells. It is called multi cellular organisms.In general, tiny cells can only be seen with a microscope. A cell is the basic unit of all living things. It is the smallest part of a living thing which is fully alive.Scientists have agreed that based on the existence nucleus membrane, there are two kinds of cells. A cell without the nucleus membrane is called prokaryotic cell. The examples of this type of organism are bacteria and blue algae. Whereas a cell that has a membrane protecting the nucleus material is called eukaryotic cell. The examples are animals and green plant cells.Each cell in your body is active and has a particular duty. Activities inside a cell may be compared with 24 hour-operating machine which produces different kinds of products. This process looks like an activity inside the factory. Only materials needed are allowed to enter the factory. Ready products will be carried outside the factory.So, the function of a cell is similar to factory. All cell functions take place in a building called the cell membrane. The cell membrane covers the internal part of a cell and controls the delivery process of substances coming in and out the cell. Cell membrane helps to maintain the chemical balance inside and outside the cell. Food and oxygen are carried into the cell through the membrane, while the remains are cast outside through the membrane.Cytoplasm is a gel like material inside a cell membrane. Most of the materials inside cytoplasm are water and several chemical substances that support the life of a cell. Cytoplasm always moves and flows.