Multiple Choice
Leaves consist of __________.
33. Plant Anatomy
Roots and Shoots
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Which of the following is closest to the center of a buttercup (eudicot) root?
A
The cortex
B
Phloem
C
Pith
D
Epidermis
E
Xylem
Verified step by step guidance1
Understand the structure of a eudicot root: Eudicot roots typically have a central core of vascular tissue surrounded by ground tissue and an outer layer of dermal tissue.
Identify the layers from the outside to the inside: The outermost layer is the epidermis, followed by the cortex, which is a layer of ground tissue.
Recognize the arrangement of vascular tissues: Inside the cortex, the vascular tissues are arranged in a ring. The phloem is located outside the xylem in this ring.
Identify the central part of the root: In eudicot roots, the xylem is located at the center, often forming a star-shaped pattern, with phloem between the arms of the star.
Conclude that the xylem is closest to the center of the root, as it forms the core of the vascular cylinder in eudicot roots.
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