Question

Arrange the layers of tissues from the centre to periphery as observed in a woody dicot stem. A. Vascular cambium B. Periderm C. Primary xylem D. Secondary phloem E. Secondary xylem. Choose the correct answer from the options given below:

• A. B, D, E, A, C
• B. C, A, E, D, B
• C. B, D, A, C, E
• D. C, A, B, D, E

Hint:

Remember the sequence: Primary xylem (C), Vascular cambium (A), Secondary phloem (D), Periderm (B).

Answer 1

The Correct Option is D

Step 1: Concept
Structure of a woody dicot stem

Step 2: Meaning
Understanding the arrangement and function of different layers in the secondary structure of a woody dicot stem.

Step 3: Analysis
The correct sequence from the center to the periphery is as follows: Periderm (B) covers the outside. Inside it, Secondary phloem (D) and Secondary xylem (E) are present, which are formed by the activity of the vascular cambium (A). The central part consists of Primary xylem (C).

Step 4: Conclusion
The layers from center to periphery in a woody dicot stem should be arranged as C, A, E, D, B. Final Answer: (D)