alleryStart learning →In roots, the structure formed by xylem and phloem lying adjacent to each other is called what?
AA vascular bundle
BA vascular stele
CA vascular cambium
DA vascular lenticel
Answer & Solution
Correct answer: B. A vascular stele
1. Xylem and phloem always lie next to each other, but the resulting structure is named differently by organ.
2. In stems that structure is a vascular bundle.
3. In roots the same arrangement is called the vascular stele, also known as the vascular cylinder.
4. The vascular cambium is a lateral meristem that adds secondary tissue, and a lenticel is a gas exchange pore in bark.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 30 "Plant Form and Physiology", section 30.1 The Plant Body_
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