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Cell Review
Cell theory
1. All living things are made of cells
2. Cells are the basic unit of function in all living things
3. All cells come from preexisting cells
Exceptions
1. Virus- can not reproduce on their own
2. Mitochondria and Chloroplasts contain their own DNA
Organelles
1.
2.
3.
4.
5.
6.
7.
8.
Nucleus- runs the activities of the cell
Cell Membrane- controls what enters and leaves the cell
Lysosome- contains enzymes that break down worn out cell parts
Golgi Body- pack and carry proteins
Endoplasmic Reticulum- series of channels that move things around the cells
Ribosome- manufacture proteins- site of protein synthesis
Vacuole- stores materials
Mitochondria- uses nutrients to produce energy – site of cellular respirations
Plants Only
1. Chloroplasts- Produces food for plants- site of photosynthesis
2. Cell Wall- supports and protects cell
Levels of organizations
Cells
Tissues
Organ
Organ Systems
Organism
Cell organelles have similar functions to the systems in the human body