alleryCasparian strips in the walls of endodermal cells carry a deposition of which material?
AWaxy suberin
BThick cutin
CSoft pectin
DHard lignin
Answer & Solution
Correct answer: A. Waxy suberin
1. The endodermis controls what passes from the cortex into the stele.
2. Its walls carry a water impermeable band that blocks the wall pathway.
3. That band is a deposition of waxy suberin, forming the casparian strips.
_Source: syllabus Biology, Ch 6 'Anatomy of Flowering Plants'_
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