1. Eukaryotic Cell StructurePg

2. Organelles – “little organs”
Specialized structures in the cell

3. Cytoplasm / Cytosol Clear, gelatinous fluid outside the nucleus
Holds organelles
ALL Cells

4. Cell / Plasma Membrane Lipid bi-layer
Flexible boundary between the cell and outside
Controls what moves in and out of cell
ALL Cells

5. Nucleus
Control center of the cell
Where DNA is stored
All Eukaryotes

6. Nuclear Membrane / Envelope
Double membrane around the nucleus
Uses nuclear pores to transport things in and out of the nucleus
Eukaryotes

7. Golgi Body / Apparatus Flattened sacs of membranes
Modifies, sorts, and packages proteins and other materials
Eukaryotes can have

8. Mitochondria Have a double membrane (inner and outer)
Converts food into energy
(cellular respiration)
Powerhouse of the cell
Eukaryotes can have.

9. Ribosomes Small, round Found free or on the Endoplasmic Reticulum (ER)
Site of protein
synthesis
Eukaryotes

10. Rough Endoplasmic Reticulum
Internal membrane system
Has ribosomes
Modifies and
transports proteins
Eukaryotes

11. Smooth Endoplasmic Reticulum
Internal membrane system
Makes lipids
Detoxifies drugs
Eukaryotes

12. Nucleolus Small, dense region inside the nucleus
Where ribosomes are made
Eukaryotes

13. Lysosomes Sacs that contain digestive enzymes
Breaks down lipids, carbs, proteins to use
Kills cells – apoptosis
Eukaryotes

14. Vacuoles Storage sacs Eukaryotes
Usually water, salts, proteins, or carbs
Eukaryotes

15. Chloroplasts Green, capture light, contain chlorophyll
Use light to produce
food for plants
(photosynthesis)
PLANT cells

16. Central Vacuole Storage membranes Main site of water storage in plants
PLANT cells

17. Cell Wall Outside plasma membrane Provides support, protection, shape
PLANT cells

18. Cytoskeleton Microfilaments Microtubules thread like proteins (actin)
Form tough, flexible framework
Help cells move
Microtubules
Hollow tube structures
Maintains cell shape
Used in cell division
Used to build cilia and flagella

19. Cytoskeleton

20. Centrioles Occur in pairs Cytoskeleton: Organizes cell division
ANIMAL cells