The cell membrane is semi-permeable.
it is not selective permeable. - Cell membranes are selective permeable. Cell walls are fully permeable - which means that it allows all substances/molecules to pass in and out of the cell. It is located outside of the membrane.
only solids can be permeable
The cytoplasm is the fluid contained within a cell. The cell membrane is the barrier that encloses the cytoplasm. The cell membrane is partially permiable, not the cytoplasm.
it is permeable to some molecules and not permeable to others.
No it is not
Visking tubing contains millions of tiny holes which only let small molecules, like water, diffuse through. Large molecules, such as starch, cannot cross the membrane. We say it is partially permeable (permeable means a substance is able to pass through). This is similar to a cell membrane. Visking tubing can therefore be used as a model of a cell.
what is the purpose of a democratic constitution
the cellmembrane?
Its not. many animals can eat and move their ears without it.
Cell
it selectively lets thingd transport into and out of the cell
Nucleus cytoplasm cellmembrane and chloroplasts
Cytoplasm and DNA is located in a bacterial cellmembrane.
Plasma membranes are selectively permeable.
yes. They do not however, have a membrane separating the nucleus from the rest of the cell
Nucleus cytoplasm cellmembrane and chloroplasts
it is not selective permeable. - Cell membranes are selective permeable. Cell walls are fully permeable - which means that it allows all substances/molecules to pass in and out of the cell. It is located outside of the membrane.