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cytology

TermDefinition
Cell (plasma) membrane A protective barrier that surrounds a cell. It regulates what substances enter and leave the cell.
Cytoplasm A gel-like substance found between the nucleus and cell membrane.
Nucleus The information center.The “brain” of the cell.Contains the chromatin.
Nucleous Found inside the nucleus. It makes ribosomes.
Nuclear membrane It surrounds & protects the nucleus.
Endoplasmic reticulum Passageways that carry proteins and other materials from one part of the cell to another.
Ribosomes The site where proteins are made
Mitochondria Energy suppliers of the cell.They release energy stored in food.Cells that need more energy have more mitochondria.
Golgi body The cell’s “mailroom”. They receive proteins and package them and distribute them to other parts of the cell.
Centrioles a minute cylindrical organelle near the nucleus in animal cells, occurring in pairs and involved in the development of spindle fibers in cell division.
Vacuole The storage rooms of the cell.Mostly contain water and food. Very large in plants.
Lysosome Small round structures that contain chemicals to break down food & waste.The recycling centers of the cell. They “clean” the cell.
Peroxisome a small organelle that is present in the cytoplasm of many cells and that contains the reducing enzyme catalase and usually some oxidases.
Chloroplasts Only found in plants!This is where photosynthesis happens.They contain a green pigment called chlorophyll.
Cell wall Only in Plants!It is like a “skeleton”. It is made of a non-living material called cellulose.It supports and protects.
Created by: 1009739