Campbell Biology (11th Edition)

Published by Pearson
ISBN 10: 0-13409-341-0
ISBN 13: 978-0-13409-341-3

Chapter 10 - Test Your Understanding - Level 1 - Knowledge/Comprehension - Page 211: 3


C. In both cases, rubisco is not used to fix carbon initially.

Work Step by Step

A and B are wrong since both $C_{4}$ and CAM plants must do all of the normal $C_{3}$ version of photosynthesis plus something special, but A and B exclude some part of $C_{3}$. D is wrong because $C_{4}$ plants still make their sugar in the light.
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