Cell Organelles Pages 20-21

OrganellesStructures inside of cells that

perform different cell activities!Also known as “little or tiny”

organs

Nucleus (Nuclei)Known as the ““control center”control center” of the cell

Operates like our brain

Contains DNA instructionsDNA instructions (our genetic information).

Give the instructions for protein synthesis

NUCLEUS

Mitochondria (Mitochondrion)

Known as the “powerhouse”“powerhouse” of the cell

This is the place where energy(ATP)ATP) is made

Contain folds called cristae

If you increaseincrease the surface area (# of folds),

MOREMORE energy is made

VacuoleStores waste (mostly water)(mostly water)Larger in plant cells than animal cells

Plants need to absorb excess water

Larger vacuole = more waterSmaller vacuole = less water

ChloroplastONLYONLY Plant CellsPlant Cells have chloroplast

This is the place where photosynthesis takes place – makes glucose!RememberRemember photosynthesis is the reaction

plants use to make their own food

Ribosome

Site of PROTEIN PRODUCTIONPROTEIN PRODUCTIONRNA travels to ribosomes to make proteinsRNA 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 WallONLYONLY Plant CellsPlant Cells have a cell wall

Located on the outside of the plasma membrane

Provides structure and support

Plasma MembraneCan be called semi-permeable OR

selectiveAllows certain material into and out

of the cellKnown as the “gate-keeper” of the cell

Responsible for maintaining a stable, internal environment ((HOMEOSTASIS)

Plasma MembraneAlso known as cell membrane & phospholipid bilayer

Made of many phospholipidsHeads: 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

RibosomesNucleus

Mitochondria Chloroplast

Vacuole

PlasmaMembrane

Cell PhonesAnimals Plant

1. Cell membrane 1. Cell Wall2. Cytoplasm 2. Cell Membrane3. Vacuole 3. Cytoplasm4. Nucleus 4. Nucleus5. Ribosomes 5. Mitochondria

6. Mitochondria 6. Chloroplast7.Lysosome(Recycle) 7. Vacuole8.Rough ER 8. Rough ER9.Smooth ER 9. Smooth ER

Organelle How can I remember it?Plasma Membrane Members only can come and go.Cell Wall I'm a brick wall.Cytoplasm Sail through my plasma.Nucleus I'm the control center.Mitochondria I am a "mighty" power house.Vacuole I'll store anything,(Hint: Vacuum Bags)Chloroplast Make me something sweet to eatRibosomes I make “some” nice protein