Cells are the fundamental units of life, ranging from 0.0001 mm to 150 mm across. Robert Hooke discovered cells in 1665 while observing cork under microscope. Anton Van Leeuwenhoek observed cells moving under higher magnification
Prokaryotes are single-celled organisms lacking a true nucleus. DNA is located in the nucleoid region of the cytoplasm. They are smaller than eukaryotic cells (0.1-5 micrometers). Prokaryotes reproduce through binary fission or recombination. They can survive in extreme environments like hot springs
Cells are the basic units of all living organisms. Cells are separated from environment by cell membrane. Some cells contain specialized organelles like nucleus and mitochondria
Cell membrane forms lipid bilayer separating cell contents from environment. DNA contains instructions for cell function, found in nucleus (eukaryotes) or cytoplasm (prokaryotes). Cytoplasm is viscous substance containing organelles and other cell components
All cells possess plasma membrane and cytoplasm. Prokaryotes lack nucleus and internal organelles. Eukaryotes have nucleus and internal organelles
Cells are basic building blocks of all living organisms. Cells contain genetic material and can multiply. Cells exist in various sizes, shapes, and types. Cells are made up of cell membrane, nucleus, and cytoplasm