Metabolism - Chemical Rxns II | BIALIGY.com

About this video

• Video Title: Metabolism - Chemical Rxns II | BIALIGY.com
• Channel: BIALIGY
• Speakers: Not specified
• Duration: 00:09:43

Overview

This video explains the concepts of exergonic and endergonic chemical reactions, which are fundamental to understanding metabolism. It details how exergonic reactions release energy, while endergonic reactions require energy input. The video also links these reaction types to catabolic and anabolic processes in biology.

Key takeaways

• Exergonic Reactions: These reactions release energy, meaning the reactants have more potential energy than the products. The change in free energy (ΔG) is negative, indicating a spontaneous and favorable process. Catabolic reactions, which break down complex molecules into simpler ones, are examples of exergonic reactions.
• Endergonic Reactions: These reactions require an input of energy to proceed. The reactants have less potential energy than the products, and the change in free energy (ΔG) is positive. These reactions are not spontaneous and require energy to occur. Anabolic reactions, which synthesize complex molecules from simpler ones, are examples of endergonic reactions.
• Metabolism Link: Exergonic reactions are associated with catabolism (breaking down), while endergonic reactions are associated with anabolism (building up).
• Energy Transfer: Exergonic reactions release energy outward (e.g., as heat), while endergonic reactions absorb energy inward into the system.