Therefore, as gravity affects all things equally, regardless of their mass in grams or kilograms, and because 1 m/s 2 = 100 cm/s 2, the surface gravity of Earth could be expressed in cgs units as 980.665 cm/s 2 and at base 10 logarithm (log g) as 2.992.
The cell wall is only in plants, and it gives the plants structure. The cell membrane controls the movement of substances entering and leaving the cell.
It selectively regulates the passage of substances into and out of  the cell. It is a very important part of a cell.   the cell membrane holds all of the stuff inside of â¦ the cell. Also  it shapes the cell that is how a animals cell is circled and a  plants cell has squared cells.