Eukaryotic Cell StructureCells and Organelles

2.4 Notes

Domain: Eukaryote

• These cells all have a ___________!

Cell Structure:

• Most cells have the same basic construction; they are:– Surrounded by a ____________(like skin)

– Centered around a nucleus– Made up of various ______________• Organelle- miniature organs with specific functions.

Cell membrane

• Function: ______________what goes in and out of the cell– Nickname: “___________” on a window

Nucleus

• Function: Controls everything that happens in the cell.

• Holds ALL the DNA– Nickname: “___________” of the cell

Cytoplasm

• All the stuff _____________the cell membrane and the nucleus (including the organelles).

Mitochondria

• Function: Makes _____________ for the cell.– Nickname:• “_____________”

Chloroplasts (plants only*)

• Function: Makes energy for the cell through _____________.– It is _____________!• *some protists

• Nickname: – “_____________”

Lysososome

• Function: Storage for digestive _____________

• Nickname: “_____________” of the cell.

Endoplasmic Reticulum

SMOOTH Endoplasmic Reticulum

• AKA: “Smooth ER”• Function: Makes

_____________ and lipids (fats)

ROUGH Endoplasmic Reticulum

• AKA: “Rough ER”• Function: Makes, modifies

and _____________ proteins.

• Covered in Ribosomes (makes it look rough)

• Nickname (for both): “roads”

Ribosome

• Function: Makes _____________– Very _____________! All those little dots!– Not * _____________ * an organelle (but super

important)

Golgi Apparatus

• Golgi Apparatus = Golgi Body = Golgi Complex• Function: Stores, modifies and

_____________ stuff around the cell– Nickname: “_____________” truck

Vacuole

• Fluid-filled spaces• Function: _____________ _____________– In _____________ a few small ones– In Plants- ONE HUGE ONE!

Cell Wall

• IN ALL PLANTS! And some _____________ and bacteria.

• Function: Provides protection and support– Makes plants “_____________”

Centriole/Centrosome

• Animal Cells _____________– • Function: helps with cell division (making new

cells)

Cilia and Flagella

Cilia• Function: Lots of little

_____________ used for moving.

Flagella• Function: One or just a few

larger “_____________” used for moving

Quick Review• Which organelle is the control center of the cell?

Nucleus• Which organelle holds the cell together?

Cell membrane• Which organelles are not found in animal cells?

Cell wall, central vacuole, chloroplasts• Which organelle helps plant cells make food?

Chloroplasts• What does E.R. stand for?

Endoplasmic reticulum

Comparing Plant and Animal CellsPlant Animal