permeable membrane
[/ˈpɜːrmiəbl ˈmɛmbreɪn/]
nounfemininepl: permeable membranes / membranas permeáveis
membrana permeável
1. A membrane that allows certain substances to pass through it while blocking others, based on size, charge, or chemical properties
The permeable membrane allows water molecules to pass through but blocks larger solute particles.
A membrana permeável permite que moléculas de água passem através dela, mas bloqueia partículas de soluto maiores.
2. In biology, a barrier that controls the selective transport of materials between compartments
Cell membranes are permeable membranes that regulate what enters and exits the cell.
As membranas celulares são membranas permeáveis que regulam o que entra e sai da célula.
3. In chemistry and physics, a material that allows the passage of specific substances while restricting others
This permeable membrane is used in dialysis to separate waste products from blood.
Esta membrana permeável é usada em diálise para separar produtos de resíduos do sangue.
The term 'membrana permeável' is used in both Brazilian and American scientific education, particularly in biology, chemistry, and medical fields. It is fundamental to understanding cellular biology and chemical separation processes. In Brazil, this concept is taught extensively in high school biology (ensino médio) and university-level courses. The distinction between 'permeável' (permeable) and 'impermeável' (impermeable) is crucial in scientific Portuguese.
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