Animals and plants
Ribosomes: is where the protein synthesis takes place. All the proteins needed in the cell are made here.
Cell membrane: controls the passage of substances in and out of the cell
Cytoplasm: is a liquid gel in which most of the chemical reactions for life take place. One of the most important is respiration.
Nucleus: controls all the activities of the cell. It also contains the instructions for making new cells or new organisms.
Mitochondria: structures the cytoplasm where oxygen is used and most energy is released during respiration.
Plants extra functions
Cell wall: made of cellulose strengthens the cell and gives it support.
Chloroplasts: are found in green parts of the plant. They release chlorophyll which gives the plant it's colour. They absorb light energy to make food for photosynthesis.
Permanent vacuole: is improtant for keeping cells rigid to support the plant.