Which of these is a special type of phellogen formed in the pericycle of roots in Rose

Options :
  1. Mesoderm
  2. Exoderm
  3. Polyderm
  4. Endoderm
Answer and Explanation :-

Answer: Option 3


In some plants of Rosaceae, Myrtaceae etc. a special phellogn is formed in the pericycle of the underground stems or roots. This cork cambium cuts, on the outer face, thin walled cells and endodermis like cells alternately. Casparian strips are also seen in these endodermis like cells, which later on become suberized. Such a composite type of tissue is called polyderm

How do you rate this queston?  Very Easy  Easy  Average  Above Average  Tough

Previous Question : Commercial 'cork' is obtained from the plant

Next Question : Which of the following is not true regarding Meristematic tissues

Click here for online test on Anatomy


 (Getemail alerts when others member replies)

So now I just assume that it won't work, and that if it does work, I'll lose it anyway. This is meant to protect me, although it doesn't, because somehow the hope sneakily finds its way in. I'm never aware of the hope until it's gone, whooshed away like a rug pulled from under my feet, each time I hear another "I'm sorry.
-Liane Moriarty What Alice Forgot