1. “The Lumber Yard” Ribosomes
site of protein synthesis (where proteins are made)
assembled in nucleolus of cell
“The
Lumber
Yard”

2. GOLGI APPARATUS (BODY or COMPLEX)
Pancake like membrane stacks
“The Post Office”
Modify, sort, & package
molecules from ER
for storage OR transport out of cell

3. Golgi apparatus:
The golgi apparatus modifies proteins and other molecules chemically and structurally and repackages them into vesicles that then travel to the cell membrane to be expelled.
Proteins
Transport
vesicle
Protein

4. Golgi Apparatus

5. Endoplasmic Reticulum
A.k.a. “ER”
Connected to nuclear membrane
Smooth ER: no ribosomes; it makes lipids
Rough ER: studded with ribosomes; it makes proteins
It’s not necessary that the students can read the labels here; just point out the black dots are ribosomes.
“The Highway”

6. Rough ER is “rough” because of ribosomes attached (sites of protein synthesis)
Smooth ER – lack ribosomes

7. Electron micrograph of smooth endoplasmic reticulum

8. Rough endoplasmic reticulum with ribosomes

9. LYSOSOMES Digest food, unwanted molecules,
Animation from:
Membrane bound sacs that contain PROTEINS called digestive enzymes
Digest food, unwanted molecules,
old organelles, cells, bacteria, etc

10. Lysosomes: waste and recycling plant of the cell, destroyer of invading disease causing cells
membrane-bound vesicles containing digestive enzymes – made in the Golgi apparatus
The enzymes break down food particles and destroy old, worn-out cell parts, and in white blood cells, bacteria and viruses.

11. Cytoplasm Extracellular fluid
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
Cytoplasm
Endoplasmic
reticulum
Phagocytosis
Food
vesicle
Golgi
apparatus
Lysosomes
Transport
vesicle
Old or damaged
organelle
Plasma
membrane
Digestion of
phagocytized
food particles
or cells
Breakdown
of old
organelle
Extracellular
fluid

12. Nucleolus “The Copy Room” **Not the same as the Nucleus**
In the center of the nucleus
Composed of protein and nucleic acid
Produces ribosomes for the cell
**Not the same as the Nucleus**