Three basic characteristics of cell:

1. Cell structure:
Cells are the fundamental unit of life and have a complex and organized structure. The basic structure of the cell includes a cell membrane, cytoplasm, and nucleus (in eukaryotic cells). The cell membrane is a selectively permeable barrier that separates the cell from its environment. Cytoplasm is the gel-like substance that fills the interior of the cell, while the nucleus is the control center of the cell that contains the genetic material.

2. Metabolism:
Cells have the ability to carry out metabolic processes, which involves the conversion of food into energy and other essential molecules. Metabolism is the sum of all the chemical reactions that occur within a cell. These reactions are essential for the cell to survive, grow, and reproduce.

3. Reproduction:
Cells have the ability to reproduce either asexually or sexually. Asexual reproduction involves the division of a single cell into two identical daughter cells. Sexual reproduction involves the fusion of two cells to form a new cell with a unique combination of genetic material.

Explanation:

Cells are the building blocks of life and are responsible for various functions within the body. These are the three basic characteristics that define a cell. The first characteristic is the structure of the cell. The cell has a complex and organized structure that includes a cell membrane, cytoplasm, and nucleus (in eukaryotic cells). The cell membrane is a selectively permeable barrier that separates the cell from its environment. The cytoplasm is the gel-like substance that fills the interior of the cell, and the nucleus is the control center of the cell that contains the genetic material.

The second characteristic is metabolism. Metabolism is the sum of all the chemical reactions that occur within a cell. These reactions are essential for the cell to survive, grow, and reproduce. Metabolic processes involve the conversion of food into energy and other essential molecules. The cell uses energy to carry out various functions such as movement, growth, and division.

The third characteristic is reproduction. Cells have the ability to reproduce either asexually or sexually. Asexual reproduction involves the division of a single cell into two identical daughter cells. This process is essential for growth and repair of tissues. Sexual reproduction involves the fusion of two cells to form a new cell with a unique combination of genetic material. This process is essential for the production of offspring and genetic diversity.

In conclusion, the three basic characteristics of a cell are its structure, metabolism, and reproduction. These characteristics are essential for the cell to carry out various functions within the body and to ensure its survival.

Cell consists of
1 cell membrane
2 nucleus
3 cytoplasm.