Certain particles can pass through materials due to factors such as size, charge, and energy. For instance, membranes or barriers often have specific pore sizes that only allow smaller particles to pass while blocking larger ones. Additionally, electrostatic interactions can influence particle movement, where charged particles may be attracted or repelled by the material. This selective permeability is crucial in biological systems, such as cell membranes, which regulate the flow of ions and molecules.
permiable
The cell membrane only allows certain molecules through.
Powdered charcoal particles are too large to pass through the pores of a membrane due to their size. The membrane acts as a barrier that only allows smaller molecules or particles to pass through, thus retaining the charcoal particles on one side of the membrane.
The cell's membrane allows only certain substances to diffuse in and out of the cell.
The proteinshave certain 'identifiers' attached to them, which only allow certain particles through, making it selectively permeable.
A filter or a gatekeeper can be a structure that allows only certain things to pass through. These structures help control and regulate what is permitted to enter or proceed.
Polarized lenses
Polarized.
A permeable membrane
Semi- Permeable
The cell membrane only allows certain molecules through.
It is known as reproduction
permiable
The cell membrane only allows certain molecules through.
semipermeable membrane
Powdered charcoal particles are too large to pass through the pores of a membrane due to their size. The membrane acts as a barrier that only allows smaller molecules or particles to pass through, thus retaining the charcoal particles on one side of the membrane.
selectively permeable means that the substance which is selectively permeable allows only selected materials to pass through it.