230_020211 - Special Announcement Friday (2/4/11) is the...

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Unformatted text preview: Special Announcement Friday (2/4/11) is the last day to drop without receiving a W Endomembrane System Consists of the following : Nuclear envelope Endoplasmic reticulum Golgi apparatus Lysosomes Vacuoles Membrane Role : The formation and transportation of proteins and lipids to the correct location. Endoplasmic Reticulum 2. 1. contains ribosomes Rough ER Contains ribosomes Makes proteins Modifies proteins with sugar (glycoproteins) Membrane Factory Ribosomes Smooth ER Synthesizes: lipids sterioids Detoxification : Helps detoxify drugs by adding hydroxlys (-OH) Important role in the liver Golgi Center for manufacturing, warehousing, sorting, shipping of vesicles. Simultaneously, proteins also continue to be modified with carbohydrates. CIS: Receiving Trans: Shipping Golgi CIS: Receiving 1 2 3 Trans: Shipping 4 5 6 1. Vesicle moves from ER to Golgi 2. Vesicles come together to form Golgi cisternae 3. Vesicles mature and move cis- to-trans 4. Vesicles leave Golgi to specific locations in the cell carrying specialized proteins 5. Some vesicles move backward to less mature Golgi cisternae 6. Some vesicles move back to the ER where they are needed. Lysosomes A membranous sac Hydrolytic enzymes used to digest molecules Work best in an acidic environment Enzymes and lysosomal membranes are...
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230_020211 - Special Announcement Friday (2/4/11) is the...

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