All critical processes, which take place in living organisms, takes place
in the cells. It's essential to understand how the cell functions
if we are to understand how living things perform life's activities.
Most cells are so small that they can only be seen through the use of a
microscope. Within these tiny living factories, various cell parts
are sbsorbing of releasing energy, forming vital needed molecules, and
controlling the cell's reproduction. In the human body, cells are
responsible for sight, hearing, smell, memory, pain
and pleasure. Most of the chemical activities that we call life,
occurs within the cell's liquid interior: the cytoplasm.
In your study
of cells you will learn the basic structure and function of plant and animal
cells and their parts. You will also learn basic principles of chemistry
needed to help you comprehend how the cell accomplishes so many of it's
astonishing processes.
He
who can no longer pause to wonder and stand rapt in awe
is as good as dead; his eyes are closed.
Albert Einstein
The cell theory states that the cell is the basic structural, functional, and developmental unit of life. If this theory is correct, then all living things should be made up of cells. It should also be true that the cells of different organisms should have some basic similarities, and at the same time, we should expect certain basic differences because of the obvious differences in cell function and type.
Through this unit you will begin to explore the unseen world through the use of the compound microscope, examine different organisms (both plant and animal), and identify the structures and processes that make up the living cell. Use the links below to assist you in your discovery of the cell.