Campbell Biology (11th Edition)

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

Chapter 36 - 36.3 - Concept Check - Page 794: 3


Caspian strips and tight junctions both control where transport occurs by preventing movement of molecules outside of cells, in the extracellular matrix of animal cells such as those with microvilli (small intestine) in the case of tight junctions and in the cell wall for the cells of the plant endodermis.

Work Step by Step

Review Fig. 6.30 and associated text. You can see the analogous role in controlling transport of these two kinds of structures. They both help to hold back movement so that it must occur across the plasma membrane.
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