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Apr 22, 2024 · Biology is a branch of science that deals with living organisms and their vital processes. Biology encompasses diverse fields, including botany, conservation, ecology, evolution, genetics, marine biology, medicine, microbiology, molecular biology, physiology, and zoology.
Cell theory, developed in 1839 by Matthias Jakob Schleiden and Theodor Schwann, states that all organisms are composed of one or more cells, that cells are the fundamental unit of structure and function in all living organisms, and that all cells come from pre-existing cells.
Molecular biology – study of biology and biological functions at the molecular level, with some cross over from biochemistry. Structural biology – a branch of molecular biology, biochemistry, and biophysics concerned with the molecular structure of biological macromolecules.
Cell biology is the study of the structural and functional units of cells. Cell biology encompasses both prokaryotic and eukaryotic cells and has many subtopics which may include the study of cell metabolism, cell communication, cell cycle, biochemistry, and cell composition.
Biology is the science that studies life, living things, and the evolution of life. Living things include animals, plants, fungi (such as mushrooms ), and microorganisms such as bacteria and archaea . The term 'biology' is relatively modern. It was introduced in 1799 by a physician, Thomas Beddoes.
This glossary of biology terms is a list of definitions of fundamental terms and concepts used in biology, the study of life and of living organisms.
Welcome to biology! Biologists study life at many scales, from individual cells to organisms to the entire biosphere (planet Earth). Jump in to learn more about the key themes of biology and the properties of living things.
