1. Cell Endomembrane System
Presented by Hongbo
Reiko
Chengxu
Caitlin
Shu Hui
Wei Ying

2. Properties of endomembrane system
• present only in eukaryotic cells
• transport system for moving molecules
through interior of the cell
• made of lipid bi-layer with proteins
attached to either side or transversing
them
• divides cell into organelles

3. Parts of the endomembrane system
• Plasma Membrane
• Endoplasmic Reticulum
• Golgi Apparatus
• Lysosome
• Vacuoles
• Vesicles
• Nuclear Envelope

4. Plasma Membrane
• separates cell from outside
environment and regulates
transport of molecules and signals
into and out of the cell and
communications with other cells
• Semi-permeable
• Attachment point for the
intracellular cytoskeleton

5. Endoplasmic Reticulum:
Bio synthetic factory
• synthesis and transport organelle
which is an extension of the
nuclear envelope
• interconnected network of tubules,
vesicles, and cisternae
• responsible for protein translation,
folding and transportation of
proteins

6. Golgi Apparatus:
Shipping and Receiving Center
• packaging and delivery system for
molecules
• processes and packages molecules
synthesized by cell
• molecules primarily proteins and
lipids

7. Lysosome:
Digestive Compartments
• breaking down of macromolecules
• contains acid hydrolases
• digest worn out organelles, food
particles and viruses/bacteria

8. Vacuoles:
Diverse Maintenance
Compartments
• membrane bound compartment
• secretory, excretory and storage
function

9. Vesicles
• store, transport or digest cellular
products and waste
• basic tool for organizing
metabolism, transport, enzyme
storage and are chemical reaction
chambers

10. Nuclear envelope
• nucleus is not part of the
endomembrane system
• encloses genetic material
• nuclear pores present on surface
to regulate transport

11. Relationships among organelles of
endomembrane system
• Nuclear envelope
• Rough ER
• Smooth ER
• Vesicles
• Golgi Apparatus
• Lysosome
• Vacuoles
• Plasma Membrane