Biology: The Unity and Diversity of Life (14th Edition)

Published by Brooks/Cole Publishing Co.
ISBN 10: 1305073959
ISBN 13: 978-1-30507-395-1

Chapter 5 - Self-Quiz - Page 98: 13


B: active transport

Work Step by Step

Passive transport includes diffusion, facilitated diffusion, and osmosis because each of these processes happen naturally when molecules move from high to low concentrations. Active transport is when molecules move from low to high concentrations. Because this process is unnatural the cell will be required to expend energy to make it happen. This energy source is ATP (made from respiration).
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