Details of the structure and functioning of living things have been determined since the development of technology such as the microscope
The discovery of the cell as the basic unit of all living things marked the start of understanding the structure and functioning of living things
Living organismsare amazing
Cells share some similarities, but not all cells are the same; they differ in structure, function, and organisation
Some organisms consist of only one cell that has to perform all functions, while others contain many different cells, each with a specific structure and function, organised to work together effectively
There are many different types of cells in organisms, classified as either prokaryotic or eukaryotic cells
Prokaryotic cells are primitive cells with a simpler structure than eukaryotic cells; there are more prokaryotic cells on Earth than eukaryotic cells
Prokaryotic and eukaryotic cells share basic similarities, each possessing a cell membrane, cytoplasm, and ribosomes
Prokaryotic cells do not have a membrane-bound nucleus; the genetic material is in a large loop called the bacterial chromosome and small circular rings called plasmids
Structures inside prokaryotic cells float in the cytoplasm, including a cell wall, pili, flagella, and a capsule
Cell walls of prokaryotic cells protect the cell and provide structural support; capsules are composed of complex carbohydrates and protect the cell
Most organisms with prokaryotic cells are unicellular, while some bacterial species form colonies of prokaryotic cells that work together
Eukaryotic cells have a nucleus and other membrane-bound organelles
Prokaryotic cells range in diameter from 0.1 to 5.0 micrometres and have structures including the cell membrane, cytoplasm, ribosomes, and genetic material
Prokaryotic cells have structures like a cell wall, pili, flagella, and a capsule
Flagella are whip-like tails that provide the cell with locomotion
The cell wall of prokaryotic cells protects the cell and provides structural support