What is a human cell ?
1. Each human individual is made up of trillions of microscopic cells. These cells are too small to be seen with the human eye. Cells come in a variety of shapes and sizes. A human cell is similar to a balloon due to the fact that it carries complex chemicals such as proteins, chromosomes and mitochondria. A human cell also contains a specialized component. This is known as the nucleus. The nucleus is like a cell within a cell. More than 99.99 % of a cell’s DNA is stored in the nucleus. The rest is in the mitochondria.