Select the incorrect statement from the following: (a) Diffusion of O2 occurs from alveoli to ti

step 1 Correct statements from the following. First is, diffusion occurs from alvely to tissue. So, Oxe

Select the incorrect statement from the following: (a)...

Select the incorrect statement from the following: (a) Diffusion of $\mathrm{O}_{2}$ occurs from alveoli to tissue. (b) Diffusion of $\mathrm{CO}_{2}$ occurs from tissue to alveoli. (c) Amount of $\mathrm{CO}_{2}$ diffused through membrane is higher than that of $\mathrm{O}_{2}$. (d) Partial pressure of $\mathrm{O}_{2}$ is higher in pulmonary artery than that of pulmonary vein.

Select the incorrect statement from the following:
(a) Diffusion of $\mathrm{O}_{2}$ occurs from alveoli to tissue.
(b) Diffusion of $\mathrm{CO}_{2}$ occurs from tissue to alveoli.
(c) Amount of $\mathrm{CO}_{2}$ diffused through membrane is higher than that of $\mathrm{O}_{2}$.
(d) Partial pressure of $\mathrm{O}_{2}$ is higher in pulmonary artery than that of pulmonary vein.

Key Concepts

Fick's Law of Diffusion

Fick's Law of Diffusion quantifies the rate at which a substance diffuses across a membrane, stating that the rate is proportional to the surface area and the difference in partial pressures (or concentration) and inversely proportional to the thickness of the membrane. This law is fundamental in understanding variations in the diffusion rates of gases like oxygen and carbon dioxide.

Alveolar Gas Exchange

Alveolar gas exchange is the process by which oxygen enters the blood and carbon dioxide is removed from the blood through the thin walls of the alveoli in the lungs. This process relies on the efficient diffusion of gases driven by the differences in partial pressures between the alveolar air and the blood.

Gas Diffusion

Gas diffusion refers to the movement of gas molecules from a region of higher concentration or partial pressure to one of lower concentration or partial pressure. This principle is central to the process of gas exchange in biological systems, as gases like oxygen and carbon dioxide move according to their respective gradients across membranes.

Partial Pressure Gradients

Partial pressure gradients are differences in the pressure exerted by individual gas components within a mixture. In respiratory physiology, these gradients drive the diffusion of oxygen and carbon dioxide between the alveoli and the blood, determining the direction and rate of gas exchange.

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