JIPMER 2009
- Exam
- JIPMER
- Year
- 2009
- Subject
- Botany
- Chapter
- Anatomy of Flowering Plants
JIPMER 2009 · Botany · Anatomy of Flowering Plants
Duramen is present in
Duramen is present in
Options
- Ainner region of secondary wood
- Bpart of sap wood
- Couter region of secondary wood
- Dregion of pericycle
Correct answer
A. inner region of secondary wood
Step-by-step solution
After certain years of growth, the xylem elements of the stems of a number of trees develop dark brown colouration, especially in the central or innermost layers. This region comprises dead element with highly lignified walls and is called heart wood or duramen. It is present in inner region of secondary wood.