Metabolism in both humans and plants
Metabolism in both humans and plants refers to all the chemical reactions that sustain life, but humans rely on breaking down food for energy, while plants primarily build energy-rich molecules through photosynthesis. 🌍 Metabolism in the Human Body Human metabolism is the sum of all chemical processes that convert food into energy and building blocks for growth and repair. It is divided into two main categories: Catabolism : Breaking down complex molecules (like carbohydrates, fats, and proteins) into simpler ones, releasing energy in the form of ATP. Example: Glycolysis (glucose → ATP), beta-oxidation (fatty acids → acetyl-CoA). Anabolism : Building complex molecules from simpler ones, requiring energy. Example: Protein synthesis from amino acids, glycogen formation from glucose. Key functions of human metabolism : Breathing and circulation Muscle contraction Digestion and nutrient absorption Brain and nerve function Waste elimination through urine and feces...