Biochemistry

Study of chemical processes within and relating to living organisms.

Biomolecules: The Building Blocks of LifeEnzymes: Nature's CatalystsCellular Respiration: Energy for Life
DNA Replication and Protein SynthesisMetabolism: Anabolic and Catabolic PathwaysCell Signaling and Communication
Biochemistry in MedicineBiotechnology and Genetic EngineeringFood and Nutrition
Concept Mapping for Complex PathwaysPractice with Real-life Scenarios
Biomolecules: The Bu...Enzymes: Nature's Ca...Cellular Respiration...DNA Replication and ...Metabolism: Anabolic...Cell Signaling and C...Biochemistry in Medi...Biotechnology and Ge...Food and NutritionConcept Mapping for ...Practice with Real-l...
Advanced Topics

Metabolism: Anabolic and Catabolic Pathways

What Is Metabolism?

Metabolism is the sum of all chemical reactions in a living thing. These reactions are organized into pathways that either build up or break down molecules.

Two Main Types

  • Anabolism: Builds larger molecules from smaller ones. Uses energy.
  • Catabolism: Breaks big molecules down into smaller ones. Releases energy.

Why Do We Need Metabolism?

Metabolism helps us grow, move, and repair tissues. It’s like a busy factory, with some workers putting things together and others taking things apart.

Key Pathways

  • Glycolysis: Breaks down glucose for energy.
  • Photosynthesis: Plants use sunlight to make food (anabolic!).

Examples

  • Muscles use catabolic reactions to release energy during exercise.

  • Plants use anabolic pathways to turn sunlight into sugar.

In a Nutshell

Metabolism is all the chemical work that keeps living things alive and active.

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Cell Signaling and Communication