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.
How does the cell membrane control what substances enter and leave the cell? The cell membrane is partially permeable and it is designed in a way such that only particular objects can enter and leave; the process by which they enter and exit the ce â¦ ll is known as diffusion which occurs due to osmosis.