The cell has 3 main parts the cell membrane, nucleus and cytoplasm. Nucleus is the brain of the cell since it contains all the genetic materials like the DNA and RNA. It has other parts like nucleolus, chromatin, nucleopore and nuclear membrane. Cell membrane is the one who protects the cell because it is semipermeable which means it is selective and don't just let anything in. Cytoplasm is further divided into 2 the cytosol and organelles. Cytosol is the gel like substance where the organelles float or can be found. Organelles are the one responsible for cell activities examples of organelles are ribosomes, rough endoplasmic reticulum, smooth endoplasmic reticulum, golgi apparatus, cytoskeleton, mitochondrion, vacuole, lysosome and centrioles. The picture in the right is an example of nucleus.
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