Foundations of Cell Biology and Cell Types

Notes

+6 History of Cell Biology: Timeline of Important Discoveries Cells are the fundamental building blocks of all living organisms, acting as the smallest units of life that provide structure, take in nutrients, convert food to energy, and carry out specialized functions, with trillions making up complex bodies like humans, containing components like the nucleus, cytoplasm, and organelles (mitochondria, ER, etc.) within a cell membrane. They are broadly categorized as prokaryotes (like bacteria, simple) or eukaryotes (like plants, animals, fungi, more complex with a nucleus) and can exist as single organisms or specialized parts of multicellular ones.