What does semi-permeable membrane mean?
A semi-permeable membrane is something that allows part of the solution to pass through it while stopping other things from passing through. The level of permeability depends on the material the membrane is made of. For instance, cheesecloth is a good example of a medium that is permeable to water while keeping out dust and small particles.
What is semi-permeable membrane mean?
A permeable membrane is one that allows certain substances to pass through it. For example, an onion has a permeable skin that allows water to pass through it. However, the membrane surrounding the onion’s seeds is not permeable. Water can easily pass through the membrane, but the seeds are protected.
What does semi-permeable membrane mean in a sentence?
A semi-permeable membrane is a barrier that allows the diffusion of certain substances in one direction while stopping or reducing the transfer of other substances. The term is used in the context of water filtms, and refers to the permeability of the material used in their construction.
What is semi-permeable membrane mean in science?
A semi-permeable membrane is a barrier that allows certain substances to pass through it while rejecting others. This is the type of barrier that bacteria use to protect themselves from antibiotics. Not all membranes are permeable to all substances. For example, the cell walls of bacteria are only permeable to small amounts of water. Thus, antibiotics can easily penetrate the cell wall to kill the bacteria, whereas larger substances, such as proteins, are not able to pass through.
What is semi-permeable membrane mean in biology?
A semi-permeable membrane is a biological structure that allows its contents to pass through it. In other words, a cell, organelle or intracellular structure is inside a membrane and its contents are isolated from the surrounding environment. This allows the cell to regulate the internal environment and communicate with other cells.