21 public questions tagged with this topic.
The chorionic villi, which extend into maternal blood spaces, facilitate the exchange of oxygen, nutrients, and waste products between the mother and the fetus.
Ref: NCERT Class 12 Biology Chapter 2: Human Reproduction Female Reproductive System and Gametogenesis
Capillaries are thin-walled blood vessels that allow the exchange of gases, nutrients, and waste between blood and tissues.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation ECG and Blood Vessels
Capillaries are thin-walled blood vessels that allow the exchange of gases, nutrients, and waste between blood and tissues.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation ECG and Blood Vessels
Emphysema is a chronic disorder in which alveolar walls are damaged, reducing the respiratory surface area, often due to smoking.
Ref: NCERT Class 11 Biology Chapter 14: Breathing and Exchange of Gases Respiratory Disorders - Asthma Emphysema Occupational Disorders
The capillaries surrounding the alveoli facilitate the exchange of oxygen and carbon dioxide between blood and air.
Ref: NCERT Class 11 Biology Chapter 14: Breathing and Exchange of Gases Transport of Carbon Dioxide and Regulation of Respiration
Alveoli are lined with a thin squamous epithelial layer to facilitate efficient gas diffusion.
Ref: NCERT Class 11 Biology Chapter 14: Breathing and Exchange of Gases Transport of Carbon Dioxide and Regulation of Respiration
The alveolar membrane allows efficient diffusion of oxygen into blood and carbon dioxide into the alveoli.
Ref: NCERT Class 11 Biology Chapter 14: Breathing and Exchange of Gases Transport of Carbon Dioxide and Regulation of Respiration
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
Gas exchange occurs passively through diffusion, driven by partial pressure gradients of oxygen and carbon dioxide.
Ref: NCERT Class 11 Biology Chapter 14: Breathing and Exchange of Gases Exchange of Gases and Transport of Oxygen
The alveolar walls are composed of a thin squamous epithelial layer to facilitate gas diffusion, not smooth muscle.
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
