The cell membrane determines what comes in and what goes out. Water goes in and out by osmosis which is a passive method. Others require the help of proteins that act as doorways. These require energy and the method is called active transportation.
The cell membrane is a busy cell. This cell regulates what can and cannot leave.
cell membrane
The Cell Membrane protects the cell and regulates what substances enter and leave it. It is like the "gate keeper"
The cell membrane is a busy cell. This cell regulates what can and cannot leave.
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The cell membrane, it regulates what enters and exits the cell. The cell membrane only exists in animal cells; plants have a cell wall, but no cell membrane.
Only indirectly. The part of the cell that regulates the movement of material is the cell membrane, which surrounds the cell.
The Cell Membrane protects the cell and regulates what substances enter and leave it. It is like the "gate keeper"
Transport proteins provide channels for certain solutes to enter and leave the cell.
The cell membrane is a busy cell. This cell regulates what can and cannot leave.
cell membrance
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The only things that enter and leave cells are molecules and proteins. organelles do not leave the cell.
The cell membrane
vaclouse
Plasma membrane
The cell wall in plants and the cell membrane in animals and bacteria.
Transport proteins allow nutrients to enter and leave cells. Transport proteins are peppered throughout the cell membrane. Most molecules need the transport proteins to enter or leave the cell, but it's possible for some molecules, like water, to diffuse through the membrane by osmosis.
The cell membrane, it regulates what enters and exits the cell. The cell membrane only exists in animal cells; plants have a cell wall, but no cell membrane.