What is Protoplasm? - Is the secret of protoplasm
The secret of protoplasm is the secret of life itself. We still do not know what makes the protoplasm living matter. Protoplasm is living part of all plants and animals. All organisms, plants and animals, consist of cells. In the living organism there can be more than a million cells, as in the human body, or only one - as in the protozoa.

But the walls of cells of all living beings wrap the same living thing - protoplasm. In each cell, the protoplasm consists mainly of two parts: a stronger central part called Nucleus and a softer, more fluid part called the cytoplasm.

Each type of living being has its own type of protoplasm, and different types of cells in the body have their own specific forms of protoplasm. Although protoplasm is different, 99 percent of its content consists of carbon, hydrogen, oxygen and nitrogen the traces of many other elements.

When a living organism consumes food, it is first digested, i.e. its transformed into a liquid form. Then the digested food must be entered into the protoplasm and become its integral part: this process is known as assimilation. It is still not clear exactly what is happening during assimilation.

It is known that assimilation leads to the replacement of worn-out protoplasm and an increase in the amount of protoplasm. During the assimilation the protoplasm builds dead ingredients in a living matter and changes the foreign matter to a substance that is similar to itself. Protoplasm also accumulates and releases all the energy that plants and animals have.

Protoplasm is sensitive to external influences. Strong light and heat will kill it.

Chemicals attract or reject protoplasm; electric current causes different reactions in it.

If one day science reveals what triggers processes in the protoplasm, we will also find out about the secret of life itself.