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JAMB Biology 2010 Question 11

Question 11

Structure of Flowering Plants

Which of the following is true of the transverse section of a dicot stem?

  1. A.The xylem is more interiorly located than the phloem.
  2. B.The cambium lies between the cortex and the vascular bundles.
  3. C.The vascular bundles are randomly scattered within the cortex.
  4. D.The epidermis is completely encircled by the cortex.
Show the answer and explanation

Answer: A (The xylem is more interiorly located than the phloem.)

Explanation

In a dicot stem the vascular bundles form a ring with phloem on the outside and xylem on the inside, separated by cambium. Scattered bundles are found in monocots.