7 public questions tagged with this topic.
The diffusion membrane in alveoli is much thinner than 1 mm, allowing efficient gas exchange.
Ref: NCERT Class 11 Biology Chapter 14: Breathing and Exchange of Gases Respiratory Disorders - Asthma Emphysema Occupational Disorders
Surfactant is a lipoprotein secreted by alveolar cells to reduce surface tension and prevent alveolar collapse.
Ref: NCERT Class 11 Biology Chapter 14: Breathing and Exchange of Gases Respiratory Disorders - Asthma Emphysema Occupational Disorders
Surfactant is a lipoprotein that reduces surface tension in the alveoli, preventing their collapse during exhalation.
Ref: NCERT Class 11 Biology Chapter 14: Breathing and Exchange of Gases Exchange of Gases and Transport of Oxygen
The partial pressure of oxygen (pO₂) in the alveoli is approximately 104 mmHg, facilitating its diffusion into the blood.
Ref: NCERT Class 11 Biology Chapter 14: Breathing and Exchange of Gases Exchange of Gases and Transport of Oxygen
The primary driving force for oxygen diffusion in the lungs is the partial pressure gradient between alveolar air and blood.
Ref: NCERT Class 11 Biology Chapter 14: Breathing and Exchange of Gases Exchange of Gases and Transport of Oxygen
Oxygen moves from alveoli into the blood through diffusion, driven by the partial pressure gradient.
Ref: NCERT Class 11 Biology Chapter 14: Breathing and Exchange of Gases Exchange of Gases and Transport of Oxygen
Gas exchange in the alveoli occurs due to the partial pressure gradient of oxygen and carbon dioxide.
Ref: NCERT Class 11 Biology Chapter 14: Breathing and Exchange of Gases Exchange of Gases and Transport of Oxygen
