2.3 describe the functions of the nucleus, cytoplasm, cell membrane, cell wall, chloroplast and vacuole

Nucleus - contains genetic material which controls the activities of the cell

Cytoplasm - most chemical processes take place here, controlled by enzymes

Cell membrane - controls the movement of substances in and out of the cell

Cell wall (only plants) - strengthens the cell

Chloroplasts (only plants) - contain chlorophyll. Chlorophyll absorb light energy for photosynthesis

vacuole (only plants) - this is filled with cell sap to help keep the cell turgid (not floppy, basically)