
Biochemistry | Definition, History, Examples, Importance, & Facts ...
Feb 12, 2025 · The term biochemistry is synonymous with two somewhat older terms: physiological chemistry and biological chemistry. Those aspects of biochemistry that deal with …
Definition, History, Concepts, Branches, & Facts - Britannica
Mar 14, 2025 · Biology, study of living things and their vital processes that deals with all the physicochemical aspects of life. Modern principles of other fields, such as chemistry, medicine, …
Biochemistry - Methods, Analysis, Research | Britannica
Feb 12, 2025 · An important tool in biochemical research is the centrifuge, which through rapid spinning imposes high centrifugal forces on suspended particles, or even molecules in …
Biomolecule | Definition, Structure, Functions, Examples, & Facts ...
Feb 15, 2025 · In another example, DNA, which is a very long molecule—in humans, the combined length of all the DNA molecules in a single cell stretched end to end would be about …
Stress | Description, Causes, & Effects | Britannica
Mar 7, 2025 · Biochemical changes play an important role in mediating physiological responses to stress; these chemical changes can result in psychological disturbances.
Enzyme | Definition, Mechanisms, & Nomenclature | Britannica
Mar 10, 2025 · Practically all of the numerous and complex biochemical reactions that take place in animals, plants, and microorganisms are regulated by enzymes, and so there are many …
Biological weapon | Types, Effects & History | Britannica
Feb 17, 2025 · Biological weapon, any of a number of disease-producing agents—such as bacteria, viruses, rickettsiae, fungi, toxins, or other biological agents—that may be utilized as …
Species | Definition, Types, & Examples | Britannica
Feb 14, 2025 · Species, a level of biological classification comprising related organisms that share common characteristics and are capable of interbreeding. According to standard taxonomic …
biochemistry - Kids | Britannica Kids | Homework Help
Biochemical reactions are responsible for the physical processes of all living things, from plants to animals to viruses. They control such functions as nutrition, digestion, and reproduction. The …
Biotechnology | Definition, Examples, & Applications | Britannica
Feb 26, 2025 · Synthetic insulin and synthetic growth hormone and diagnostic tests to detect various diseases are just some examples of how biotechnology is impacting medicine. …