Levels of Cellular Organization

Front

What is a cell?

Back

The basic unit of life that can perform all life processes.

Front

What is a tissue?

Back

A group of cells that work together to perform a specific function.

Front

What is an organ?

Back

A structure made up of different types of tissues that work together to perform a specific function.

Front

What is an organ system?

Back

A group of organs that work together to perform complex functions in an organism.

Front

What is the smallest level of organization in an organism?

Back

Cell.

Front

What is the difference between a cell and a tissue?

Back

A cell is the basic unit of life; a tissue is a group of cells that work as one.

Front

What is an example of a tissue?

Back

Muscle tissue, which helps in movement.

Front

What is an example of an organ?

Back

The heart, which pumps blood throughout the body.

Front

What is an example of an organ system?

Back

The circulatory system, which includes the heart and blood vessels.

Front

What is the function of epithelial tissue?

Back

To cover and protect surfaces of the body and organs.