Cell Organelles Pages 20-21

Organelles  Structures inside of cells that perform different cell activities!  Also known as “little or tiny” organs

Nucleus (Nuclei) “control center”  Known as the “control center” of the cell  Operates like our brain DNA instructions  Contains DNA instructions (our genetic information).  Give the instructions for protein synthesis NUCLEUS

Mitochondria (Mitochondrion) “powerhouse”  Known as the “powerhouse” of the cell ATP)  This is the place where energy(ATP) is made  Contain folds called cristae increase MORE  If you increase the surface area (# of folds), MORE energy is made

Vacuole (mostly water)  Stores waste (mostly water)  Larger in plant cells than animal cells  Plants need to absorb excess water  Larger vacuole = more water  Smaller vacuole = less water

Chloroplast  ONLYPlant Cells  ONLY Plant Cells have chloroplast  This is the place where photosynthesis takes place – makes glucose!  Remember  Remember  photosynthesis is the reaction plants use to make their own food

Ribosome PROTEIN PRODUCTION  Site of PROTEIN PRODUCTION  RNA travels to ribosomes to make proteins  They look like small dots

Cilia & Flagella Help the cell move Cilia = short, hair-like structure Flagella = long, whip-like structure

Cytoplasm Gel-like substance throughout the cell that holds the organelles in place

Cell Wall  ONLYPlant Cells  ONLY Plant Cells have a cell wall  Located on the outside of the plasma membrane  Provides structure and support

Plasma Membrane  Can be called semi-permeable OR selective  Allows certain material into and out of the cell  Known as the “gate-keeper” of the cell (  Responsible for maintaining a stable, internal environment (HOMEOSTASIS)

Plasma Membrane  Also known as cell membrane & phospholipid bilayer  Made of many phospholipids  Heads: Hydrophilic (water loving)  Tails: Hydrophobic (water fearing)

Plasma Membrane Proteins are found within the plasma membrane – Channel Proteins  allow materials to pass through – Receptor Proteins  allows the cell to communicate with other cells

Plasma Membrane

Cell-fies Instructions: Draw and Color illustrations on the front. On the back write the name of the organelle and provide the function of each Ribosomes Nucleus Mitochondria Chloroplast Vacuole Plasma Membrane

Cell Phones AnimalsPlant 1. Cell membrane 1. Cell Wall 2. Cytoplasm2. Cell Membrane 3. Vacuole3. Cytoplasm 4. Nucleus 5. Ribosomes5. Mitochondria 6. Mitochondria6. Chloroplast 7.Lysosome(Recycle)7. Vacuole 8.Rough ER8. Rough ER 9.Smooth ER9. Smooth ER

Organelle How can I remember it? Plasma Membrane Members only can come and go. Cell WallI'm a brick wall. CytoplasmSail through my plasma. NucleusI'm the control center. MitochondriaI am a "mighty" power house. VacuoleI'll store anything,(Hint: Vacuum Bags) Chloroplast Make me something sweet to eat RibosomesI make “some” nice protein