The plasma membrane is the boundary between the cell and its environment. It regulates what enters and exits the cell. Cells must maintain an appropriate amount of molecules to function inside them. They must also have a way to keep things out or to allow things to enter. This is the job of the plasma membrane. The plasma membrane is like the guard at a gated community. The guard must inspect those who enter and those who leave to make sure that only the people and things needed in the community are there.
The cell membrane is a thin semi-permeable membrane that surrounds the cytoplasm of a cell. Its function is to protect the integrity of the interior of the cell by allowing certain substances into the cell, while keeping other substances out. It also serves as a base of attachment for the cytoskeleton in some organisms and the cell wall in others. Thus the cell membrane also serves to help support the cell and help maintain its shape.
Melting of ice and island decreasing in level
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DNA is located inside the nucleus (There is also a small percentage of Dna inside the mitochondria)
Answer:
molecule perform its function in order to share electrons and full its outermost shell electrons which is required for an atom to make himself stable.
Explanation:
what do you mean by perform its function?if you not understand again ask a question properly .thanks