Anatomy and Morphology of Plants
As compared to a dicot root, a monocot root has
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Single Choice
Passage cells are more distinct in endodermis of
ADicot stem
BMonocot stem
CDicot root
DMonocot root
Correct Answer
Solution
Passage cells are endodermal cells of older roots, which have retained thin walls and Casparian strips rather than becoming suberized and waterproof like the other cells around them, to continue to allow some symplastic flow to the inside.
Passage cells function to allow transfer of solutes, such as calcium and magnesium into the stele, in order to eventually reach the transpiration system.
Passage cells are more distinct in endodermis of monocot root and absent in dicot root, monocot stem and dicot stem. Thus, option D is correct.
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