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.
Most cells have: 1  A nucleus â controlling the activity of the cell. 2  Cytoplasm â where chemical reactions occur. 3  A cell membrane â to control the passage of substances in and out of the cell. 4  A Mitochondria which is where the energy is released from.ost cells have: 1  A nucleus â controlling the activity of the cell. 2  Cytoplasm â where chemical reactions occur. 3  A cell membrane â to control the passage of substances in and out of the cell. 4  A Mitochondria which is where the energy is released from.