Cell membrane – is a bilipid layer that serves as a barrier that separates the internal and external environment. It keeps the integrity of the cell. It also controls what can go inside or outside the cell.

Nucleus – is the control center of the cell. It contains the DNA (genetic material). It is the one that determines how the cell will function and what its basic structure will be.

Cytoplasm – This is where most of the organelles are found. it is a fluid part of the cell and is the site of many metabolic reactions. This includes cell growth and replication.

Cytoplasmic organelles – “little organs”; these have specific structure and function.

Rough ER – contains ribosomes and produces proteins for the rest of the cell.
Smooth ER – does not contain ribosomes and mainly functions for lipid storage and synthesis.
Mitochondria – generates most of the cell’s energy in the form of ATP.
Golgi Apparatus – serves as the package and transport center of the cell. It exports the proteins made inside the cell.
Ribosomes – are the site for protein synthesis.