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.
Function of the organelle. Shipping/Receiving Department. Plasma membrane. Regulates what enters and leaves the cell; where cell makes contact with the external environment. Chief Executive Officer (CEO) Nucleus. Controls all cell activity; determines what proteins will be made. Factory floor. Cytoplasm. Contains the organelles; site of most cell activity