Lipids are biological molecules that store energy, form cell membranes, and act as hormones. Learn types, functions, properties, and effects. Lipids – Definition, Types, Functions, and Importance This entry was posted on March 10, 2026 by Anne Helmenstine (updated on March 21, 2026)
Learn what osmosis is, how it works, and why it matters in biology, medicine, and everyday life. Includes examples and key terms. Osmosis – Definition, Process, and Importance in Biology This entry was posted on February 11, 2026 by Anne Helmenstine (updated on June 20, 2026)
Learn what neurotransmitters are, how they work, their types, functions, and roles in the brain, mood, disease, and medication. Neurotransmitters – Definition, Types, Functions This entry was posted on January 7, 2026 by Anne Helmenstine (updated on January 17, 2026)
Learn about photosynthesis with a definition, diagram, and glossary. Discover the chemical reaction formula and explore the process. Photosynthesis – Definition, Formula, Process, Diagram This entry was posted on November 18, 2025 by Anne Helmenstine (updated on May 12, 2026)
Learn what hormones are, how they work, where they're made, and why they matter in humans, animals, and plants. Hormones – Definition, Function, Sources, and Regulation This entry was posted on October 21, 2025 by Anne Helmenstine (updated on August 4, 2026)
Learn what vitamins are, their functions, sources, deficiencies, and why they’re essential for health in this complete biochemistry guide. Vitamins – Definition, Functions, and Importance This entry was posted on September 23, 2025 by Anne Helmenstine (updated on March 24, 2026)
Glycolysis breaks down glucose into pyruvate, producing ATP and NADH. Learn its steps, regulation, significance, and clinical relevance. Glycolysis – Definition, Steps, Regulation, and Significance This entry was posted on August 26, 2025 by Anne Helmenstine (updated on June 23, 2026)
Digestive enzymes break down food into nutrients. Learn their types, functions, and importance in human and animal digestion. Digestive Enzymes – Chart and Facts This entry was posted on July 30, 2025 by Anne Helmenstine (updated on March 10, 2026)
Learn about enzymes in biochemistry. Get the definition, examples, models of enzyme function, and see how enzymes work. Enzymes – Definition, Examples, Function This entry was posted on March 25, 2025 by Anne Helmenstine (updated on March 24, 2026)