The collective term used for phelloderm (secondary cortex), cork cambium (phellogen) and cork (phellem) is

Pericycle

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Periderm

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Protoderm

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Procambium

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Solution

The correct option is D Periderm
Periderm is a secondary covering form on small woody stems and many non-woody plants. It is composed of cork (phellem), the cork cambium (phellogen), and the phelloderm which are collectively called periderm. The periderm forms from the phellogen which serves as a lateral meristem. The periderm replaces the epidermis and acts as a protective covering like the epidermis.
So, the correct answer is 'Periderm'.

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Similar questions

Q. Which of the following statements is or are not true?
1. Cork cambium is otherwise called as phellogen.
2. Cork is otherwise called as phellem.
3. Secondary cortex is otherwise called as periderm.
4. Cork cambium, cork and secondary-cortex are collectively called as phelloderm.

Q. Which of the following is/are not true?
(A) cork cambium is otherwise called phellogen
(B) Cork is otherwise called phellem
(C) Secondary cortex is otherwise called periderm
(D) Cork cambium, cork and secondary cortex are collectively called phelloderm.

Phellogen and phellem respectively denote

(a) cork and cork cambium

(b) cork cambium and cork

(d) cork and secondary cortex

Q. Which of the following are not true
a. Cork cambium is otherwise called phellogen
b. Cork is otherwise called phellem.
c. Secondary cortex is otherwise called periderm.
d. Cork cambium, cork and secondary cortex are collectively called phelloderm

Which of the following statements are not correct?
I. Cork cambium is otherwise called phellogen.
II. Cork is otherwise called phellem.
III. Secondary cortex is otherwise called periderm.
IV. Cork cambium, cork and secondary cortex are collectively called phelloderm.
Select the correct answer using the codes given below:

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