Question

Give reason for the following: The cell is called a structural and fundamental unit of life.

Answer 1

Hint: Numerous types of cells are present in this world. Multicellular organisms have dedicated cells that perform definite functions. For example, the blood consists of RBC and this cell is mainly tasked with exchanging oxygen and carbon dioxide. One more example of a specialized cell is the photoreceptor cell present in the eye. This type of cell is linked with changing light into signals able to influence biological processes.

Complete answer:
The cell is known as a structural and functional unit of life because all living organisms are composed of cells. Cells are also vital for performing various life processes needed for supporting life. Besides, cells provide shape and structure, process nutrients, and change it into usable energy.

Cells are called the basic units of life in part because they approach in discrete and effortlessly recognizable packages. That's because all cells are bordered by a structure called the cell membrane, which actually acts like a wall, serves as a plain boundary between the cell's inner and outer environments. The cell membrane is also referred to as the plasma membrane in some cases.

Cell membranes depend on a skeleton of fat-based molecules called phospholipids, which prevent water-loving, or hydrophilic, substances from incoming or escaping the cell.

Note: Within the cell membrane, a cell's inner environment is water-based known as cytoplasm, this liquid environment is packed full of cellular machinery and fundamental elements. The concentrations of proteins inside a cell far extra as those on the outside — whether on the outer side are ocean water or blood serum. All the components for the correct functioning of the cell are present within the cytoplasm.