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What does it mean when the plasma membrane is selectively permeable?
it only allows specific things to enter.
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Differentially. This means, in this context, that the cell membrane is semipermeable; letting some substances through and not letting some other substances throu…gh the membrane.
it allows some substances to pass through but blocks the passage of others.
The Plasma Membrane is a selectively permeable membrane as it only allows entry and exit of some selected molecules into and out of the Cells. It also prevents movement of s…ome other materials, therefore the plasma membrane is called a selectively permeable membrane.
it regulates what materials enter and leave the cell
A cell membrane is selectively permeable, often referred to as being semi-permeable because it only allows specific substances to enter the cell, and keeps others out. This …means that the cell membrane will allow certain molecules, but not others, through the cell. Small molecules can fit through the phospholipid bilayer passively (without requiring energy) and do not require any help to pass through the membrane. Other molecules (specifically large or polar ones) are not immediately permitted through the membrane and require active transport (using energy)
Because plasma membrane allows only certain solute to move into the cell and outside the cell
selectivley permeable membranes only allow certain materials to pass through. It allows some molecules to enter the cell and blocks entry to others.
It only let's some materials pass in and out.
The plasma membrane is selectively permeable because it needs to allow certain things in and certain things out. The plasma membrane is a selectively permeable membrane as i…t allows the entry and exit of some selected substances only.
When a cell's membrane is permeable, it means that only certain proteins and other molecules can go in and out of the porous membrane, through protein pumps and other pathways…. Some molecules stay inside the cell, while others float outside. Starches, for example, are large molecules that cannot pass through the membrane.
Waste must be let out of the cell, while nutrients must be kept in. At the same time, nutrients must be let in, and toxins must be kept in.
this means that cell membrane allows only selected substances to enter the cell.
some substances can pass across them and others cannot
A cell membrane (the outer casing or inner casing in a plant cell) is selectively permeable. This is because some materials can pass freely through the cell membrane while oth…ers cannot.
It is semi-permeable. Small, polar molecules (like water) can pass through, as can non- polar molecules (like steroids). However, since the inside of the double-layered plasma… membrane is non-polar, large polar molecules require channels or transport proteins to get inside the cell.
gases such as oxygen and carbon dioxide
It will only let certain materials pass through