Cells-The Cell: The Foundation of All Living things

Cells are considered the basic “unit of life” because cells are the foundation of all living elements on the earth. On this planet, if any life exists, that is because of the existence of cells or cells inside it. There are different types of cells in human bodies and animal bodies that have different functions to operate the body smoothly. The tiniest living object also comprises at least one or two cells that help it survive in nature’s lap. 

Definition of Cell 

Cells are the body’s genetic materials and help living objects operate their body smoothly. Cells are formed through mutation, and the number of cells can be increased after mutation. Small living objects have a limited number of cells that can only provide them with the basic need of life, that is, taking breath properly, but multicellular organisms like humans and animals are made with trillions of cells that help them effectively complete each body activity. 

No living element can survive without cells because it is the main cause of life as a human baby is produced from one single cell to a multicellular organism. 

Types of Cells 

There are four main types of cells in living objects, among which a single cellular organism only has one type of cell, and the multicellular organisms have an end number of cells. The types of cells are mentioned below. 

• Epithelial Cells

• Muscle Cells

• Nerve Cells

• Connective Tissue Cells

Epithelial cells are strongly attached, covering the hollow organs’ interior like digestive organs or blood vessels. “There are dozens of types of epithelial cells in the body” to protect the living objects. Muscle cells are “specialised for contractions and help to move. Nerve cells are known as communication cells and operate the nervous system of humans and animals. “Connective tissue cells” are responsible for invading the bacterial and germ attack to the body by building a structural strength. 

Functions of Cells 

The functions of these cells are completely different because all the cells control different activities in the body and provide strength to the body in multiple ways. Epithelial cells’ main function is to protect the skin from outside injury so that the hollow organs of humans and animals can be protected. By pulling and tugging on tendons and bones, the muscle cells help living objects create motion by which they can move from one place to another. [see Appendix A]. Nerve cells are responsible for communication as they send signals to muscles and glands from the brain and control the body’s communication system. 

Providing “structural strength to the body”, the “connective tissue cells” build a strong defending wall against the “foreign invaders like bacteria”. These cells are divided into two types which are fat cells and fibroblasts, which are “native to connective tissue”. 

Importance of cells in terms of founding all living things

Cells are extremely important for “all living things” on this earth because cells control every activity of humans and animals. From digestion to respiration, all the activities are controlled by the cells. Without nerve cells, the body will not understand how to react to which actions, and the communication level with others will become poor if the nerve cells do not work properly. Similarly, without the epithelial cells, the skin will not be protected. The blood vessels will be seen from outside of the body, which is extremely dangerous because outside attacks can damage the blood vessels immediately as it is quite sensitive. 

On the other hand, without muscle cells, the body will not work properly because these cells are responsible for the movement of humans and animals. In addition, without “connective tissue cells”, the outside invaders can easily attack the human and animal bodies and affect the immunity system. 

Conclusion 

The importance of cells cannot be described in one word because there are many functions of cells like helping in digestion, respiration, blood vessels and the nervous system. All activities are controlled by the cells. The number of cells is increased through mutation, and the increased cells make the activity faster than earlier in the human body. Regarding animals, though their cellular system is not as powerful as humans, their needed cells are present in their bodies to provide solid support to them. 

Life is not possible without cells as they are the “basic building blocks” of all living elements, and life is entirely dependent on the formation of cells. Cells are even known as the “founder of all living objects”. However, excessive generation of a particular cell in humans’ or animals’ bodies can create a hormonal imbalance.