Biology
Biology
3rd Edition
ISBN: 9781259824913
Author: Hoefnagels, Mariëlle
Publisher: Mcgraw-hill Education,
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Chapter 4.5, Problem 4MC
Summary Introduction

To explain:

The reason for the use of energy in maintaining a concentration gradient.

Introduction:

Movement of particles from an area having higher concentration to lower concentration is referred to as the concentration gradient. These two areas between which movement takes place between are usually separated from each other by some kind of membrane.

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✓ Details Draw a protein that is embedded in a membrane (a transmembrane protein), label the lipid bilayer and the protein. Identify the areas of the lipid bilayer that are hydrophobic and hydrophilic. Draw a membrane with two transporters: a proton pump transporter that uses ATP to generate a proton gradient, and a second transporter that moves glucose by secondary active transport (cartoon-like is ok). It will be important to show protons moving in the correct direction, and that the transporter that is powered by secondary active transport is logically related to the proton pump.
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The Cell Membrane; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=AsffT7XIXbA;License: Standard youtube license