Biology: Life on Earth with Physiology (11th Edition)
Biology: Life on Earth with Physiology (11th Edition)
11th Edition
ISBN: 9780133923001
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Chapter 5, Problem 4MC
Summary Introduction

Introduction:

The process in which molecules move from “high concentration area to the lower concentration area” is called diffusion. The higher the concentration gradient, diffusion occurs more rapidly. High temperature also increases the rate of diffusion.

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The rate of diffusion increases if thea. concentration gradient decreases.b. temperature of a solution decreases.c. viscosity of a solution decreases.d. All of these are correct.
The greater the magnitude of the concentration gradient:   a.  the more rapid the rate of diffusion. b.  the more likely mediated transport is required. c.  the easier it is to reverse the flux. d.  the higher number of ATPs required to diffuse. e.  all of the above is true.
Facilitated transport differs from diffusion in that facilitated diffusiona. involves the passive use of a carrier protein.b. involves the active use of a carrier protein.c. moves a molecule from a low to a high concentration.d. involves the use of ATP molecules.
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