What are Cells ?

  The cell is the basic unit of living organisms, also the smallest. They are living the parts that every human is made up of, every animal and plant. They mainly grow, reproduce and die.  

Cells are classified as unicellular and multi-cellular. Bacteria would be unicellular, as it only exists out of one cell. Animals and plants are multi-cellular as it dwells of many millions of cells. 

The two main types of cells would be the animal cell and the plant cell. Their functions are the same but their structures aren’t.

All cells have organelles, like a vacuole, mitochondria and chloroplast. An organelle is a specialized part of a cell having some specific function, in other words a cell organ if I can put it that way. A plant cell has a cell wall to protect it and contains chloroplast, which is needed for photosynthesis. These two things aren’t contained in the animal cell. 

Membrane, nucleus and cytoplasm are the three main factors of a cell. They also consist of smaller components.

All cells are made by other cells and made up of protein and organelles. The main function of a cell is to organise. There are cells that move through the body, which are blood cells. Others are muscles cells that stay in one place – attached to each other. So each cell actually has their own specialty. Motor neurons are the longest cells in the human body. A fertilized egg is the largest cell and can’t even be seen with the naked eye!