Why is the cell called the structural and functional unit of life?
Cells are often referred to as the structural and functional unit of life because they are the basic building blocks of all living organisms. Here's why:

Structural Unit:
- Cells are the smallest units of living organisms that are capable of carrying out all the processes necessary for life.
- They provide structure and support to the organism, forming tissues, organs, and ultimately, the entire organism.
- Each cell is surrounded by a membrane that protects it and allows for the passage of nutrients and waste products.

Functional Unit:
- Cells perform all the essential functions required for life, such as metabolism, growth, reproduction, and response to stimuli.
- They contain organelles that carry out specific functions within the cell, such as energy production in mitochondria, protein synthesis in ribosomes, and genetic information storage in the nucleus.
- Cells can communicate with each other through chemical signals, allowing for coordination of activities within an organism.

Importance:
- Understanding the structure and function of cells is crucial in biology as it helps us comprehend how living organisms function and interact with their environment.
- Many diseases are caused by abnormalities at the cellular level, making the study of cells essential for medical research and treatment.
- Cells provide a common ground for studying different organisms, as all living things are made up of cells, regardless of their size or complexity.
In conclusion, cells are rightfully called the structural and functional unit of life because they are the basic components that make up all living organisms and perform essential functions necessary for life to exist.

Bcz all living organisms are made up of cell and also all the functions taking places inside the body of organisms are performed by cells