1. Endomembrane System

2. List adjectives to describe a membrane.
Endomembrane System
WHAT IS A SYSTEM?
Membranes within the eukaryotic cell that work together to modify, process and ship molecules around and out of the cell.
List adjectives to describe a membrane.

3. Endomembrane System Like a bubble Phospholipid bilayer MOSAIC
Membranes within the eukaryotic cell that work together to modify, process and ship molecules around and out of the cell.
MOSAIC
Semipermeable
FLUID

4. Endomembrane System All made of phospholipid bilayer Includes:
Nuclear envelope
Rough ER
Smooth ER
Transport vesicles
Golgi apparatus
Lysosomes
Secretory vesicles

5. The Endomembrane System
proteins
transport
vesicle
Golgi
apparatus
smooth ER
rough ER
nuclear pore
nucleus
ribosome
cell
membrane
protein secreted
cytoplasm

6. production of mRNA from DNA in nucleus mRNA out of nucleus
nuclear
membrane
mRNA
nuclear pore
production of mRNA from DNA in nucleus
mRNA out of nucleus
through nuclear pore

8. Using RNA code, a protein is synthesized on a ribosome and transported in channels of the ER.

9. Endoplasmic Reticulum
Function
processes proteins
manufactures membrane
Structure
membrane connected to nuclear envelope & extends throughout cell
accounts for 50% membranes in eukaryotic cell

10. Types of ER
rough
smooth

11. Protein is packaged into transport vesicles and travels to the Golgi along the cytoskeleton “track”
Using RNA code, a protein is synthesized on a ribosome and transported in channels of the ER.

14. Video clip

15. Vesicle fuses with the Golgi and protein is modified as it passes through.
Protein is packaged into transport vesicles and travels to the Golgi along the cytoskeleton “track”
Using RNA code, a protein is synthesized on a ribosome and transported in channels of the ER.

16. Golgi Apparatus Function finishes, sorts, tags & ships products
like “DHL shipping department”
ships products in vesicles
membrane sacs
“DHL trucks”
transport vesicles
secretory
vesicles
Cells specialized for secretion?
endocrine glands: produce hormones
pituitary, pancreas, adrenal, testes, ovaries
exocrine glands: produce digestive enzymes & other products
pancreas, mammary glands, sweat glands

17. Completed protein is packaged into secretory vesicles for release from the cell or stored in vesicle or lysosome if used inside the cell.
Vesicle fuses with the Golgi and protein is modified as it passes through.
Protein is packaged into transport vesicles and travels to the Golgi along the cytoskeleton “track”
Using RNA code, a protein is synthesized on a ribosome and transported in channels of the ER.

18. Vesicle transport

19. What has happened to the size of the membrane when a vesicle releases its protein contents to the outside of the cell? Draw a picture to illustrate.

21. Inner life of cell (narrated)
Inner Life of the Cell
Inner life of cell (narrated)