Ch6%20Study%20Guide - MCB3209 Chapter 6 Membrane transport...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
MCB3209 Chapter 6, Membrane transport of solutes, water and ions by diffusion, mediated transport, active transport, secondary active transport, filtration and osmosis. Generation of voltages. pp. 128-137, 140-145, 146-150 Study Guide Define or describe: extracellular, intracellular, interstitial, plasma; facilitated diffusion (uniport) for glucose; cotransport (symport) for glucose and Na in intestinal epithelial cells; exchange (antiport) for Cl and HCO 3 in red cells; ion channels for Na + and K + that are gated by voltage; Na/K-pump (ATPase); the role of K channels and the Na/K pump in generating a membrane voltage. Distinguish between diffusion and osmosis; equilibrium vs. steady state for ions inside cells; primary vs. secondary active transport Use the Nernst equation to approximate the magnitude and sign (inside negative or positive) of membrane voltage in presence of ion concentration gradients. Membrane voltage will be closest to the Nernst potential of the most permeant ion. 1. T-F? Cell voltage is negative inside because there are more cations (positively charged ions) outside the cell than inside. 2. T-F? Carrier proteins transport molecules across membranes at a fixed rate called saturation rate.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/21/2010 for the course MCB 57703 taught by Professor Machen during the Spring '08 term at Berkeley.

Page1 / 2

Ch6%20Study%20Guide - MCB3209 Chapter 6 Membrane transport...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online