Biology · Gaseous Exchange
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The oxygen and carbon dioxide crosses the plasma membrane by the process of?
- A
Active diffusion
- B
Facilitated diffusion
- C
Passive diffusion
- D
Random diffusion
Diffusion is the spontaneous movement of gases, without the use of any energy or effort by the body, between the alveoli and the capillaries in the lungs. Perfusion is the process by which the cardiovascular system pumps blood throughout the lungs.
Active Transport: molecules move across cell membranes by two major processes diffusion or active transport. Diffusion is the movement from a high concentration of molecules to a low concentration of molecules.
Facilitated diffusion is the transport of substances across a biological membrane from an area of higher concentration to an area of lower concentration with the help of a transport molecule.
Passive transport is a type of membrane transport that does not require energy to move substances across cell membranes.
Diffusion is a stochastic process due to the inherent randomness of the diffusing entity and can be used to model many real-life stochastic scenarios.
Tagged under Biology · Gaseous Exchange