Cell Parts and their functions:
Nucleus: brains of the cell, directs cell’s activities
Nucleotide: found inside the nucleus, clump of chromatin
Cytoplasm: It is the substance that fills the cell. It is a jelly-like material that is eighty percent water and
usually clear in color.
Golgi Body: (aka golgi apparatus or golgi complex), packages and distributes goods throughout cell. Like
the post office
Ribosomes: make proteins
Smooth ER: stores chemicals needed by the cell. The chemicals stored depends on type of cell. For
example, it stores calcium in muscle cells to help with muscle contraction.
Rough ER: The prime function is the production and processing of specific proteins at ribosomal sites that
are later exported. The ribosomes on the rough endoplasmic reticulum do their job and create proteins
which are then sent in to the rough endoplasmic reticulum for advanced processing.
Mitochondrion: found in most eukaryotic cells, including plant/animal, where ATP synthesis occurs
(production of energy), needed by humans to turn what they eat into energy in the form of ATP.
Lysosome: full of digestive enzymes, used to digest old cell parts, cell foods, and even bacteria
Cell membrane: (aka plasma membrane) controls what enters and exits cells and for protection
Cell Wall: for protection of cell (outside of plant cell membranes but not animal cells)
Chloroplast: found in plant cells, where photosynthesis takes place in plant cells (energy making
process)
Vacuole: Large organelle in plants. Used for storage of water and other chemicals. Pressurize plant
cells. Some are in animal cells but they are small.
You will be taking a test over this page during your mandatory
tutorial this week. If you make a 100, I will change your Cell
Organelles test to a 70. If you do not make a 100, I will still add
10 percent of the points to the Cell Organelle test. For
example, if you make an 80, I will add 8 points to the cell test.