Types of Cells (Science 1)

• Mycoplasma Gallicepticum is the smallest cellular organism known to man
• An Ostrich's egg is the largest cell
• The smallest cell size is 0.3 nanometers
• The largest cell size can reach up to 6 inches in diameter
• There are about 200 types of cells in the human body
• Robert Hooke is the one who discovered the first ever cell
• Robert Hooke discovered it on year 1665
• He decided to obeserve a piece of cork on that particular day
• He saw box-like structures which are known as the cell walls
• Cells are the primary living blocks of life
• All organisms are made up of cells
• All life functions of an organism happens within the cell
• All cells come from other cells that are already existing
• All cells come from exisiting cells by cell division or also known as cell reproduction
• All energy flow of life occurs within the cell
• The chemical composition of cell is basically the same in organisms of similar species
• The cells contains hereditary information and is passed from one to another during cell division
• DNA stands for Deoxyribonucleic Acid
• RNA stands for Ribonucleic Acid
• Ribosomes structures produces proteins
• RNA is necessary for protein production
• Cytoplasm is the fluid that occupies space inside the cell
• Plasma membrane regulates the entry or exit of materials in and out of the cell
• Biologists have classified organisms into domains: Archaebacteria, Eubacteria and Eukarya
• The development of microscope led to the discovery of cells
• Most single-celled organisms can be found in the domains of Archaebacteria and Eubacteria
• Single-celled organisms are also often called as prokaryotes