Campbell Biology (10th Edition)

Published by Pearson
ISBN 10: 0321775651
ISBN 13: 978-0-32177-565-8

Chapter 39 - 39.4 - Concept Check: 1

Answer

Abscisic acid causes the plants to close their stomata. Plants producing an excess of this acid would have their stomata closed more often than the wild type.

Work Step by Step

Closed stomata would halt much evaporative cooling that would otherwise occur on the surface of the leaves on mutant plants, making them warmer than the wild type.
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