Fundamentals of Biochemistry: Life at the Molecular Level 5th Edition

Published by Wiley
ISBN 10: 1118918401
ISBN 13: 978-1-11891-840-1

Chapter 10 - Membrane Transport - Exercises - Page 318: 5


a) Nonmediated transport b) Mediated transport c) Nonmediated transport d) Mediated transport

Work Step by Step

a) Ethanol is a non-polar compound and therefore passes through the membrane by non-mediated transport. b) As glycine is a polar molecule, it is transported through mediated transport. c) Cholesterol is a steroid and is therefore transported through non mediated transport. d) ATP requires a driving force to pass through a membrane and must therefore be transported by mediated transport.
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