Question

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.

• A. b and d only
• B. b and c only
• C. c and d only
• D. a and b only
• E. a and d only

Answer 1

Answer: (C)

c and d only

A) Cork cambium is other wise called phellogen - True

B) Cork is other wise called Phellem - True

C) Secondary cortex is other wise called periderm - False, becasue, secondary cortex is otherwise called phelloderm, and cork, cork cambium and secondary cortex together called Periderm.

D) Cork cambium, cork, and secondary cortex are collectively called phelloderm. - False, because cork, cork cambium and secondary cortex together called Periderm.

So, the correct option is 'c and d only'.