Cell (biology) - Wikipedia Cells emerged on Earth about 4 billion years ago All cells are capable of replication, protein synthesis, and motility Cells are broadly categorized into two types: eukaryotic cells, which possess a nucleus, and prokaryotic cells, which lack a nucleus but have a nucleoid region
Cell - Discovery of Cells, Characteristics, Types, Difference . . . Cells, the basic building blocks of all living organisms, can be broadly classified into two types: prokaryotic cells and eukaryotic cells Each type has distinct characteristics and can be further divided into various subtypes, depending on the organism they belong to
Overview of Cells - Visible Body What are cells and what do they do? The nucleus of a eukaryotic cell contains its DNA Cells are the microscopic units that make up humans and every other living organism Some organisms consist of only one cell, while others (like humans) have trillions of cells! 1