Glossary

• Cell wall- this structure is found outside the plasma membrane. Cell walls are found in plant cells, bacterial cells and fungal cells. Each phylum has it's own characteristic chemical composition.

• Central vacuole- is a  large membrane bound structure found in plants and some fungi. It is used for storage of water or other substances. 

• Chloroplast- double membrane organelle found in green parts of plants. It is the site of photosynthesis.

• Cytoplasm- gel like material of the cell which contains organelles.

• Mitochondria- oval shaped double membrane bond organelle. It is the site of aerobic production of ATP.

• Nucleolus- this structure is found in the nucleus and is the site of RNA synthesis

• Nucleus- double membrane bond structure found in eukaryotic cells. The nucleus contains the genetic material of the cell.

• Plasma membrane- this membrane surrounds the cytoplasm of all cells. It is composed of a phospholipid bilayer with interspaced proteins.

• Prokaryote- organisms that do not contain a nucleus. Bacteria are prokaryotes.

• Ribosomes- this structure is composted of RNA and proteins. It is the site of protein synthesis. Ribosomes consists of a small subunit and a large subunit. Prokaryotic, mitochondria, chloroplast ribosomes are smaller, than eukaryotic ribosomes.