Organelles

The **Plasma Membrane** regulates what enters and leaves the cell and separates the internal environment from the external environment. It is composed of a lipid bilayer and is a selectively permeable membrane because it allows water molecules to diffuse through the bilayer. The **Cytoskeleton** helps support cell structure and drive cell movement. **Flagellum**: a long, hair-like extension on a cell that helps the cell propel **(Animal Cells Only)** The **Vacuole** stores extra material for the cell such as nutrients and water and is the largest organelle in the plant cell. **(Generally, Plant Cells Only) ** **Chloroplasts** are the sites for photosynthesis and are only found in plant cells. Chlorophyll pigments in the chloroplasts gives plants their color. **(Plant Cells Only) ** [|Check out this link] to review the structures and functions of the organelles!
 * The Nucleus** is the control center of the cell. It is the largest organelle in an animal cell and it contains DNA.
 * Nuclear Envelope:** Double-layer membrane that surrounds the nucleus
 * Nucleolus:** Synthesizes ribosomes
 * The Endoplasmic Reticulum** is an extension of the nuclear membrane.
 * Rough E.R.**: Transports ribosomes
 * Smooth E.R**.: Synthesizes lipids
 * Ribosomes** are the sites of protein synthesis and are the smallest organelle in the cell.
 * The Golgi Apparatus** sorts, chemically alters, and packages important molecules.
 * Peroxisomes** detoxify harmful substances that enter the cell.
 * Cilia**: short, hair-like extensions on the cell that aid in cell movement **(Animal Cells Only)**
 * Lysosomes** are responsible for intracellular digestion and are only found in animal cells. They are membranous sacs of acidic enzymes and are sometimes called 'suicide sacs.' **(Generally, Animal Cells Only)**
 * Mitochondria** are the sites of cellular respiration generate fuel for the cell's activities.<span style="color: rgb(94,136,247);">**(Animal Cells Only)**
 * Cell Wall:** Structure outside of a plant cell that gives the cell its rigid, boxy shape. <span style="color: rgb(120,230,117);"><span style="color: rgb(125,223,114);">**(Plant Cells Only)**



Still confused on Plant and Animal cell differences? Maybe this vid will clear things up! http://videos.howstuffworks.com/hsw/10311-the-cell-plant-and-animal-cells-video.htm