BIOL 1081 Lecture Notes - Lecture 9: Golgi Apparatus, Peptide, Endomembrane System
Document Summary
Endomembrane system, mitochondria, & chloroplasts reading: sections 6. 4-6. 5 in textbook: list the different components of the eukaryotic endomembrane system and describe the composition, shape, and location of each. Double membranes of smooth and rough er form sac called cisternae. Smooth er looks more like tubes when compared to the rough er. Rough er looks like sheets or disks of bumpy membranes (bumps=ribosomes) Smooth er is located next to the rough er that is next to the nucleus. Rough er is found throughout the cell but the density is higher near the nucleus and the. Lysosomal membrane is made by the rough er and then transferred to the golgi for further processing. 3d shape protects vulnerable bonds from enzymatic attack. Has distinct structural directionality, w/ the membranes of the cisternae on opposite sides of the stack differing in thickness and molecular composition located in the cytoplasm next to the endoplasmic reticulum and near the cell nucleus.
