Ions are in low concentration outside a cell. they move rapidly into the cell via protein molecules. what term describes this action? does it require energy?

The movement of ions from an area of low concentration to high concentration is called osmosis. The cells have a semi permeable membrane called the cell membrane which selectively allows the passing of certain ions. This is the opposite of reverse osmosis which requires relatively large amount of energy than the natural osmosis

Dna overload will occur