Q. 95.0( 2 Votes )

Phellogen and Phellem respectively denote
A. Cork and cork cambium

B. Cork cambium and cork

C. Secondary cortex and cork

D. Cork and secondary cortex

Answer :

Phellogen and Phellem respectively denote Cork cambium and cork.

Due to activity of vascular cambium the stem continue to increase girth-wise. So the outer cortical and epidermis layers get broken and are replaced by new protective cell layers.


So in cortex region another meristematic tissue develops called Cork Cambium or Phellogen.


Phellogen cuts off cells on both sides. The outer cells differentiate into cork or phellem.


Hence the correct answer is option (b).

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Interactive Quiz on Plant TissuesFREE Class
NCERT Exemplar| Anatomy of Flowering Plants Part 2FREE Class
Dicot and Monocot stem51 mins
Secondary growthFREE Class
Interactive Quiz on Vascular tissue System52 mins
Interactive Quiz | Leaf and its modificationsFREE Class
Dicot and Monocot rootFREE Class
Interactive Quiz on Secondary growth in dicot stem31 mins
Interactive Quiz | Anatomy of flowering plant41 mins
Interactive Quiz on anatomy of flowering plants40 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses