BIOL 2313 Lecture Notes - Endoplasmic Reticulum, Intermembrane Space, Biological Membrane

• School: Northeastern University
• Department: Biology
• Course: BIOL 2313
• Professor: Donald Cheney

Document Summary

Continuum of systems - nucleus and endoplasmic reticulum. Diffusion - from high concentration to low concentration. Osmosis - movement of water through a differentially permeable membrane a) b) H+ then transported to outer stroma and coupled to make atp b) H+ then transported to inner matrix and coupled to make atp. Model of a membrane - fluid mosaic model a) b) Passive transport - mass flow - little or no metabolic involvement. Up - diffusion - adhesion (sticking of unlike) & cohesion (sticking of like) Active transport - selective transport (energy) - metabolic involvement.