Cellular Respiration Process

Cellular Respiration

Overview

• Cellular respiration is the process by which cells generate energy from glucose
• It involves the breakdown of glucose to produce ATP (adenosine triphosphate), which is the energy currency of the cell

Stages of Cellular Respiration

1. Glycolysis
   • Takes place in the cytoplasm
   • Breaks down glucose into pyruvate, producing 2 ATP and 2 NADH
   • Net gain of 2 ATP
2. Citric Acid Cycle (Krebs Cycle)
   • Takes place in the mitochondria
   • Breaks down pyruvate into acetyl-CoA, producing 2 ATP, 6 NADH, and 2 FADH2
   • Net gain of 2 ATP
3. Electron Transport Chain
   • Takes place in the mitochondrial inner membrane
   • Uses energy from NADH and FADH2 to generate ATP
   • Produces 32-34 ATP
4. Oxidative Phosphorylation
   • Takes place in the mitochondrial inner membrane
   • Uses energy from the electron transport chain to generate ATP
   • Produces 32-34 ATP

ATP Yield

• Total ATP yield from complete breakdown of glucose: 36-38 ATP
• ATP yield from glycolysis: 2 ATP
• ATP yield from citric acid cycle: 2 ATP
• ATP yield from oxidative phosphorylation: 32-34 ATP

Importance of Cellular Respiration

• Essential for generating energy for cellular processes
• Plays a critical role in maintaining cellular homeostasis
• Dysregulation of cellular respiration can lead to various diseases and disorders

Cellular Respiration

Overview

• Cellular respiration is the process of generating energy from glucose for the cell
• ATP (adenosine triphosphate) is the energy currency of the cell produced during respiration

Stages of Cellular Respiration

Glycolysis

• Occurs in the cytoplasm
• Breaks down glucose into pyruvate, producing 2 ATP and 2 NADH
• Net gain of 2 ATP

Citric Acid Cycle (Krebs Cycle)

• Occurs in the mitochondria
• Breaks down pyruvate into acetyl-CoA, producing 2 ATP, 6 NADH, and 2 FADH2
• Net gain of 2 ATP

Electron Transport Chain

• Occurs in the mitochondrial inner membrane
• Uses energy from NADH and FADH2 to generate ATP
• Produces 32-34 ATP

Oxidative Phosphorylation

• Occurs in the mitochondrial inner membrane
• Uses energy from the electron transport chain to generate ATP
• Produces 32-34 ATP

ATP Yield

• Total ATP yield from complete breakdown of glucose: 36-38 ATP
• ATP yield from glycolysis: 2 ATP
• ATP yield from citric acid cycle: 2 ATP
• ATP yield from oxidative phosphorylation: 32-34 ATP

Importance of Cellular Respiration

• Essential for generating energy for cellular processes
• Plays a critical role in maintaining cellular homeostasis
• Dysregulation of cellular respiration can lead to various diseases and disorders

Understand the process of cellular respiration, including glycolysis, citric acid cycle, and more. Learn how cells generate energy from glucose and produce ATP.