EEOB 2520 Lecture Notes - Lecture 3: Agonist, Cytosol, Integral Membrane Protein

• School: Ohio State University
• Department: Evol, Ecology & Organismal Bio
• Course: EEOB 2520
• Professor: Cynthia Bronson

Document Summary

Osmosis: net diffusion of water across a membrane. From high to low water concentration [h2o] = from low to high [solute] 3 mol mg+2 + 2 mol glucose in 1l = 5 osm. 3 mol mgcl2 + 2 mol glucose in 1l = 11 osm. Osmosis - consequences: change in cell size due to solution. Isotonic: same [non-penetrating solute] = no change in volume. Hypertonic: increase [non-penetrating solute] = decrease in volume. Hypotonic: decrease [non-penetrating solute] = increase in volume. Non-penetrating = can"t go through the membrane: osmotic pressure. Binding regulates transport (interact with it) (binding causes a shape change) Conformation (shape) changes cause transport and atp. Always on gradient gets bigger and one gets smaller. Because we need the gradient going away in one to power the gradient getting bigger on the other side. Repeat this process > this only happens if we have na+ gradient > na+ and. Co-transport: both to ecf or both to icf.