Mechanics and Types of Respiration

Understanding Respiration in Human Physiology

Respiration is a vital biological process responsible for the exchange of gases in living organisms. It ensures oxygen intake and carbon dioxide expulsion.

Types of Respiration: Aerobic and Anaerobic Processes

Aerobic Respiration

Aerobic respiration occurs in the presence of oxygen. It generates energy through the breakdown of glucose and is the most efficient form of respiration.

• Location: Occurs in the mitochondria
• Process: Glycolysis → Krebs cycle → Electron transport chain
• End Products: Carbon dioxide, water, and ATP

Anaerobic Respiration

Anaerobic respiration takes place in the absence of oxygen, relying on alternative biochemical processes.

• Location: Occurs in the cytoplasm
• Process: Glycolysis → Fermentation
• End Products: Lactic acid (in animals), ethanol, and CO₂ (in yeast)